You do?
I do

Some can, others are like me. Training routines are like cowbow boots: One size doesn't fit all and most are way too ornate!
I know what you mean, everyone is different, It takes me 2-3 hours to make solid gains, it takes you 1 hour to make solid gains. Some of the most awesome bodybuilders I know train for only 45 mins.
You missed my point, say for example you train for 1 hour, and you go balls to the wall, and you are just beat after your work out (thats the same feeling I get after 2-3 hours).
But you don't get to the 1 hour mark and go "oh no I'd better stop here because if I keep going I'm going to overtrain and become catabolic" - no you stop after 1 hour of training because you have completed your entire work out and have annihlated the muscle you were training and are exhausted!!
My point is that some people are beat after an hour of lifting, some are beat after 2 hours of lifting.... my problem is stopping too short because of various myths that you read in magazines.
Does that make sense? Train until you tear down the muscle to the optimal levels - and that could be 45 mins, 1 hour, 2 hours, 3 hours..... but don't cut yourself short because "you don't want to overtrain"