Miz Toast -
Pardon my ignorance, but I don't really "get" what it is you're trying to accomplish. Do you want to get "big," more defined, or what? I'm also baffled with your heavy weights - what good are they doing your strength if you can only do 12 push-ups? To me that means you're concentrating on the wrong areas. That's just my humble opinion, not worth a hill of beans anywhere. You may find this interesting - it's from Men's Health Newsletter:
"THINK MARINE TRAINING, SIR (or Ma'am)
Ditch the heavier-is-better mindset. "Before you rush to pick up bigger, heavier plates, ask yourself, Do I want to look like a giant Olympic powerlifter or a totally ripped Marine?" says Iannetta. "Being able to bench 300 pounds doesn't necessarily mean you'll look good with your shirt off."
Want a guaranteed beach-ready body? Do more total work with your muscles. "Our armed forces look awesome because they're doing 150 pushups a day," Iannetta says. "Volume ultimately gives you better size and shape than going heavy."
Determine your optimum volume--the total work you do in a workout--by multiplying weight times reps times sets. For example, if you do three sets of 10 curls with a 50-pound bar, your biceps have done 1,500 pounds' worth of total work. Now suppose you do three sets of 20 curls with a 40-pound bar. That's 2,400 pounds' worth of work--a 60 percent increase in overall load.
To sculpt like Michelangelo, Iannetta recommends reaching into the 18-rep range. But keep the weight heavy enough to be challenging. Your muscles should still feel fatigued (although they won't hit failure) at the end of each set."
As Cathe would say, "Just a suggestion, take it or leave it, right?"
"It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt." Mark Twain ;-)