High Frequency & High Volume BW Training

Hi coach, you said in other article, that frequency is the king for hypertrophy. And the problem with barbell training is the recovery if we want to train with high frequency. I like bodyweight training and i see a lot of good body with this methodology.

A)Is it density training a good method for grow ( 10 min: Every min 3 reps, then 4, 5 etc)
B)What do you think of some bodyweight routine with lots of volume like this?
Alternate the exercises - push-ups first, then pull-ups, etc, so the first round would be 30 push-ups, 10 pull-ups, 20 dips, and 10 chin-ups. Next round 29 push-ups, 9 pull-ups, 19 dips, and 9 chin-ups, …

Push-ups - 30/29/28/27/26/25/24/23/22/21/20
Pull-ups - 10/9/8/7/6/5/5/5/5/5/5
Dips - 20/19/18/17/16/15/14/13/12/11/10
Chin-ups - 10/9/8/7/6/5/5/5/5/5/5

C)How many rest day we need with bodyweight training to surcompensate and make muscle ?
D)What do you think of pletnev or other method with differents muscle contraction for hypertrophy on bodyweight training
E)What do you think of high frequency bodyweight for upper body with 2 workouts with sdhp, front squat, clean or deadlift?

thank coach