100 pushup program with weighted back pack

[ArmyFIST03]

So I want to get some feedback on the 100 pushup program. It seems to start out quite slow and gradually pick up the pace... wanted to get some feedback on whether or not using a weighted back pack with 20 lbs. or so In it with this entire program would be beneficial. I have seemed to have hit a plateau of about 95-102 PU in 2 min. and I have been trying to get passed this hump for the last few months and nothing seems to be going... What is your opinion on using a weighted back pack with 20lbs or so in it for this entire routine?


Week 1 & 2: Every other day
POSITION #1: Triangle push-ups (you should touch your thumbs to your xiphoid process (lightly!) when trying to touch your chest to the ground)
+ 5 partials
+ 5 complete
+ 7 partials
+ 7 complete
+ rest 90 seconds
POSITION #2: Move hands to shoulder length apart (the tips of your fingers should be aligned with the tops of your sholders)
+ 5 partials
+ 5 complete
+ 7 partials
+ 7 complete
+ rest 90 seconds
POSITION #3: Move your hands out until, during mid rep, your upper arms will be perpendicular to your forearms. The hands should remain in the same position relative to the shoulders (ie move them "out" in a straight line)
+ 5 partials
+ 5 complete
+ 7 partials
+ 7 complete
* Week 3: 2 days on, 1 off; 2 on, 1 off; 1 on
POSITION #1
+ Until failure
* Week 4 & 5: 1 on, 2 off; 2 on, 1 off; 1 on, 2 off; 1 on, 2 off; 1 on, 1 off
POSITION #1
+ 7 partials
+ 7 complete
+ 12 partials
+ 12 complete
+ rest 120 seconds
POSITION #2
+ 7 partials
+ 7 complete
+ 12 partials
+ 12 complete
+ rest 120 seconds
POSITION #3
+ 7 partials
+ 7 complete
+ 12 partials
+ 12 complete
* Week 6: 2 on, 1 off; 2 on, 1 off; 1 on
POSITION #1
+ Until failure
+ rest 240 seconds
POSITION #2
+ Until failure
* Week 7 & 8: 1 off, 1 on; 2 off, 1 on; 1 off, 1 on; 2 off, 2 on; 1 off, 1 on; 1 off
POSITION #1
+ 15 partials
+ 15 complete
+ rest 90 seconds
+ 40 complete
+ rest 240 seconds
POSITION #2
+ 15 partials
+ 15 complete
+ rest 90 seconds
+ 40 complete
+ rest 240 seconds
POSITION #3
+ 15 partials
+ 15 complete
+ rest 90 seconds
+ 40 complete
+ rest 240 seconds
* Week 9: 2 on, 1 off; 2 on, 1 off; 1 on
POSITION #1
+ Until failure
+ rest 240 seconds
POSITION #2
+ Until failure
+ rest 240 seconds
POSITION #3
+ Until failure
+ rest 240 seconds
* Week 10: 1 off, 1 on; 2 off, 1 on; 1 off, 1 on
POSITION #2
+ 100 complete
* Maintenance: Twice a week
POSITION #2
+ 100 complete