You already do everything 2 times per week why not try doing this heavy/light appraoch without sticking to the set 7 day schedule and could go something like this and I also believe this to be similar to something that Dr. Joe Klemczewski wrote up in this months natural BB and Fitness, it's the august edition. It's undulating periodization and it's been used in many new studies and has been proven to be very effective and I even branched something off of this of my own called SSHIT training and have been doing this for about 5-6 years with little modifications to it over the years!
You could keep it simple to start and do every other day like this:
Power heavy compound moves
Day 1= Heavy Legs/Calves
2 exercises of 5X5 usually SLDL's and Squats
Day 2= OFF
Day 3= Heavy Chest
One exercise 5x5 and maybe a couple of DB presses
Day 4= OFF
Day 5= Heavy Back/Shoulders
Deads and maybe power presses both for 5x5's
Day 6= OFF
Day 7= am Negative Legs(Hams, Quads, calves)
pm 100 reps Shoulders/Traps
don't have to do this style of training but you can do 2 quads and 2 hamstrings for 3-4 sets a piece and doing reps in the range of 8-12 reps
Day 8= am Slow Positives Chest/tris
pm 100 reps Legs/Calves
2-3 chest exercises for 8-12 reps
1-2 for triceps and again 8-12 reps
Day 9= OFF
Day 10= am Step Bombs Back/bis
pm 100 reps Chest/Tris
3-4 back exercises of 8-12 reps and then maybe 1-2 for biceps again 8-12 reps
Day 11= am Negative Shoulders/traps
pm 100 reps Back/Bis
2-3 shoulder exercises for 8-12 reps then 1-2 trap exercises for 8-12 reps
Day 12= OFF
once the cycle is over you can repeat and try to make small progressions and as you can see this lasts 12 days to finish off the body going through 2 times and then you could start it up again!
Try it you might like it here's the cycle I am following right now:
S.S.H.I.T. Training Schematic-IV
Day 1= Heavy Legs/Calves
Day 2= OFF
Day 3= Heavy Chest
Day 4= OFF
Day 5= Heavy Back/Shoulders
Day 6= OFF
Day 7= am Negative Legs(Hams, Quads, calves)
pm 100 reps Shoulders/Traps
Day 8= am Slow Positives Chest/tris
pm 100 reps Legs/Calves
Day 9= OFF
Day 10= am Step Bombs Back/bis
pm 100 reps Chest/Tris
Day 11= am Negative Shoulders/traps
pm 100 reps Back/Bis
Day 12= OFF
Day 13= Hypertrophy/Volume Combination (Hamstrings/Calves) 4x6-10, 4 cycle triset-10-15 reps
Day 14= Hypertrophy/Volume Combination (Chest) 4x6-10, 4 cycle triset-10-15 reps
Day 15= Hypertrophy/Volume Combination (Back) 4X6-10, 4 cycle triset-10-15 reps
Day 16= OFF
Day 17= Hypertrophy/Volume Combination (Shoulders/Traps) 4x6-10, 4 cycle triset-10-15 reps
Day 18= Hypertrophy/Volume Combination (Quads/Calves) 4x6-10, 4 Cycle Triset-10-15 reps
Day 19= Hypertrophy/Volume Combination (Arms) bis 4x6-10 and Tris 4x6-10, then 4 cycle trisets with Bis and tris or 2 supersets of each bodypart
Day 20= OFF
Day 21= Heavy Legs/Calves
Day 22= OFF
Day 23= Heavy Chest
Day 24= OFF
Day 25= Heavy Back/ Shoulders
Day 26= OFF
Day 27= am Slow positives Legs/Calves
pm 100 reps Shoulders/Traps
Day 28= am Step Bombs Chest/Tris
pm 100 reps Legs/Calves
Day 29= OFF
Day 30= am Negatives Back/Bis
pm 100 reps Chest/Tris
Day 31= am Slow positive/ Tension Shoulders/Traps
pm 100 reps Back/Bis
Day 32= OFF
Day 33= Hypertrophy/Volume Combination (Hamstrings/Calves) 4x6-10, 4 cycle triset-10-15 reps
Day 34= Hypertrophy/Volume Combination (Chest) 4x6-10, 4 cycle triset-10-15 reps
Day 35= Hypertrophy/Volume Combination (Back) 4X6-10, 4 cycle triset-10-15 reps
Day 36= OFF
Day 37= Hypertrophy/Volume Combination (Shoulders/Traps) 4x6-10, 4 cycle triset-10-15 reps
Day 38= Hypertrophy/Volume Combination (Quads/Calves) 4x6-10, 4 Cycle Triset-10-15 reps
Day 39= Hypertrophy/Volume Combination (Arms) bis 4x6-10 and Tris 4x6-10, then 4 cycle trisets with Bis and tris or 2 supersets of each bodypart
Day 40= OFF
Day 41= Heavy Legs/Calves
Day 42= OFF
Day 43= Heavy Chest
Day 44= OFF
Day 45= Heavy Back/Shoulders
Day 46= OFF
Day 47= am Step Bombs Legs/Calves
pm 100 reps Shoulders/Traps
Day 48= am Negatives Chest/Tris
pm 100 reps Legs/Calves
Day 49= OFF
Day 50= am Slow Positive/ Tension Back/Bis
pm 100 reps Chest/Tris
Day 51= am Step Bombs Shoulders/Traps
pm 100 reps Back/Bis
Day 52= OFF
Day 53= Hypertrophy /Volume Combination (Hamstrings/Calves) 4x6-10, 4 cycle triset-10-15 reps
Day 54= Hypertrophy /Volume Combination (Chest) 4x6-10, 4 cycle triset-10-15 reps
Day 55= Hypertrophy /Volume Combination (Back) 4X6-10, 4 cycle triset-10-15 reps
Day 56= OFF
Day 57= Hypertrophy /Volume Combination (Shoulders/Traps) 4x6-10, 4 cycle triset-10-15 reps
Day 58= Hypertrophy /Volume Combination (Quads/Calves) 4x6-10, 4 Cycle Triset-10-15 reps
Day 59= Hypertrophy /Volume Combination (Arms) bis 4x6-10 and Tris 4x6-10, then 4 cycle trisets with Bis and tris or 2 supersets of each bodypart
Day 60= OFF
Day 61= Heavy Legs/Calves
Day 62= OFF
Day 63= Heavy Chest
Day 64= OFF
Day 65= Heavy Back/ Shoulders
Day 66= OFF
Day 67= Legs/Calves (Combos) use all three training protocols, no 100’s
Day 68= Chest/Tris (Combos) use all three training protocols, no 100’s
Day 69= OFF
Day 70= Back/Bis(Combos) use all three training protocols, no 100’s
Day 71= Shoulders/Traps(Combos) use all three training protocols, no 100’s
Day 72= OFF
Day 73= Hypertrophy /Volume Combination (Hamstrings/Calves) 4x6-10, 4 cycle triset-10-15 reps
Day 74= Hypertrophy /Volume Combination (Chest) 4x6-10, 4 cycle triset-10-15 reps
Day 75= Hypertrophy /Volume Combination (Back) 4X6-10, 4 cycle triset-10-15 reps
Day 76= OFF
Day 77= Hypertrophy /Volume Combination (Shoulders/Traps) 4x6-10, 4 cycle triset-10-15 reps
Day 78= Hypertrophy/Volume Combination (Qauds/Calves) 4x6-10, 4 Cycle Triset-10-15 reps
Day 79= Hypertrophy /Volume Combination (Arms) bis 4x6-10 and Tris 4x6-10, then 4 cycle trisets with Bis and tris or 2 supersets of each bodypart
Day 80= OFF