I get what you mean. I was thinking of extending the 12-15's for a min. but then quickly changed my mind. I have one more day left of the 12-15's then I'll move on. I think I miss calculated my maxes for 12-15's cause I'm easily hitting them and I have another day left (tomorrow). What would you suggest should I go ahead and lift another day of 12-15 with weight past my maxes, or should I just move on to the 8-10's??? ANd yes my main goal is hypertrophy, so I see what you mean when you say to extend the 8's or 5's. Thanks for the input. It helps me out alot.