I have been using the Perfect Pushup system for a little over a year. This is a product that works in all honesty. I originally bought the system because I wanted more upper body strength for the swim, because at 38, I need all the advantage I can and because I always get such a beating in the swim. So I figured, more strength, easier to power through the people. Anyway, here is a pic I took from when I first started using the Perfect Pushup.
As you can tell, I was a little chubby. Not really in bad shape, but not in great shape either. So I got the Perfect Pushup system and stayed the course. I did the workout exactly to the letter of the instructions. My first "max-out" using it was 11push ups. Now before you start giggling, I could do way more than 11 push ups without the system, but the PP makes it that much harder.
The thing about the Perfect Push up that gives you such a great workout is the twisting motion of the push up. It really works the shoulders. Also the different positions of the hands makes it hard as well. I hate the close grip ones, those are the hardest for me. Overall, I am really happy with this product. In fact I am going to start using them in my 21 workout, which I know will be killer!
Anyways, here is my after following the plan for about a year. I have seen alot of improvement in my swimming also. My last "max-out" was 38, so I am heading in the right direction.