I read this article,
http://www.cbass.com/KevinDye.htm. Maybe some of you want to check this out, its quite interesting.
It basically says that your body gets tired of adapting constantly to failure and that stopping 2 reps short will allow quicker muscle recovery. I'm willing to believe this Kevin Dye dude who has been lifting for 21 years. I've also read other scientific research which backs him up.
I've decided to stop 2 short from failure now on and see if my gains improve, because they have been stalling for a few months. I'm starting to come round to the idea that I don't need to feel trashed after a workout and a sore as if I had been hit by the polar express.
If you ache less from not going to failure, you can fit more workouts in and get more growth cycles whilst not overtaxing your CNS. I believe its possible that the CNS may become adapted to training to failure and will not improve motor innervation as a result. This lack of CNS improvement could cause lack of strength gains, and therefore size.
Anyone have any thoughts on this?