Agree with what said above^^^^ how about size??? any body transformation? Everyone is different but personally I could care less how much I can lift anymore. I havent benched in 10 yrs due to shoulder pain, srictly dumbells and machines. My spouse lifts with me on the weekends, due to hern discs in back my spouse and I squat the SAME weight! And no, she is not a big woman. my point, aging does suck but we can fight it off and I think most people are here in an attempt to do so and live healthier.

As you indicated, go to failure, burn the muscle, eat clean and get rest! On a side note, I must admit it was pretty embarressing about 3 months ago when this hot blonde about 25 115-120 lbs was squating more than me! She had the 45's on each side, out of principle I added 5 more pounds LOL