Originally Posted by Dave Van Skike
squat more. press more. pull more. i'm afraid it's that simple.
Lift heavy $#!+, often!
Fast twitch fibers have the greatest propensity for growth. Your not working towards stimulating them.
Bodyweight training has a cap on motor unit recruitment.
Why do you want to focus on fat gain?
Do a clean bulk and be patient. If you are going to try and put on 20+ lbs. in a summer, the vast majority of that is going to be fat. Which you will have to lose and more than likely lose hard earned muscle in the process.
Muscle development is a journey. Enjoy the journey.