Yes, calisthenics can be progressed to be quite difficult. Planches and handstand pushups require a ton of stabilizer muscle strength and a ton of balance. This makes them rather impressive (and fun) … but the very thing that makes them impressive also makes them rather poor at building up muscle mass. Even with advanced progressions of bodyweight workouts the limiting factor will very rarely be mechanical tension in the targeted muscle, but rather stabilizer muscle strength and/or balance. As a result, your balance and stabilizer muscle strength will improve while your muscle size will remain more or less the same.
Tren- great medication, which gives excellent results on the path of "solo" to increase muscle mass without the need to be combined with other medications. However, it is a very powerful steroid, and therefore do not exceed the recommended dosage of certain: for acetate - is 50mg per day for enthatate: 300-350mg per week. To test the tolerance of Tren is better to start with a minimum dosage. If the entire rate is not more than six weeks, the need for additional formulations appears; when 6 to 8 weeks, with the need to enter the second week Gonadotropin (500 / 1000ME every 7 days) and stop taking it two weeks after administration cycle. Next, we have to be post-cycle therapy: start 14 days after the last injection or after 3days (if used Tren Acetate). To restore testosterone production take testosterone boosters (4 weeks after the course).