[BendtheBar]

While I don't care to take sides, I do see that Lyle is stating that it's darn near impossible to double your squat in 6 months.

I squatted for the first time in college in November, 1986. This was my first serious go-around with weights other than my concrete set at home, and I never squatted.

My first real workout on squats was (give or take) about 135 for reps, probably no more than 4 to 6. I remember these times because I was pathetically weak. My first bench press was with 95 pounds and I hit failure at about rep 4.

I looked extremely dangerous under the bar - like I would kill myself. It was then that my future mentor noticed my foolishness, and began giving me squat tips and advice.

I fell in love with the squat, performed it about twice a week, and by April of '87 (about 5 to 6 months), I was hitting 315 for reps on the squat. From '87 to the end of 1988, my squat progressed to 365 for reps. I then entered the military.

So, I can say with confidence that my squat doubled in less than 6 months. I had a good coach that taught me lessons about hip drive, etc. that I still think about on every squat set coming out of the hole.

I understand that I am the exception, and not the rule. I doubled my squat in a short period of time. I also put on quite a bit of LBM during this time.

But to back Lyle, in would be nearly impossible to gain 33 pounds of muscle in 15 weeks. I have not seen Zach's before picture, but I assume he was underweight. I don't believe that as a body normalizes its weight that all the gains are muscle. There has to be more issues as play when underweight, such as a lessened bone density, etc.