When I first started lifting really serious I used pyramids, 10,8,6,4,2 using something that I could get fairly easy for reps 10 and 8, then reps 6,4,2 were the absolute most weight I could use for that rep range. It worked good for me and I think it has its place, but I was just getting serious, so I could have probably made gains on anything. I may go back to it sometime, but I doubt it will be anytime soon.