The great thing about having made progress with a particular approach, is you can repeat it, modify it slightly and see if you are making progress again.
Once you have seen progress, its easier to identify if you are on track and gaining again. Make sure you do frequent measurements to determine if you are gaining or not. If not, then try and up the time for a couple weeks. If after trying this for a month, and still no gains, I would move on.
Just remember its far more productive to start with low force approaches, then progress up to higher force approaches. For example, lets just say you had great success hanging at 25 lbs, so you give it another go. Lets just say you make some good gains for a couple months and it stops. If you at that point if you go to pumping at 3 in hg….you can forget it! The tissues have toughened to the high forces, and stopped gaining. Going immediately to a low force approach without an extensive decon break is a waste of time.
On the other hand, if you have 3-4 different methods, and you begin to go through them starting with the lowest force and progress through them to the highest force…there is a good chance you can have a prolonged period of growth. Of course, at the end of this, lets say you ARE hanging at 20-25 lbs, and gains quit, it will probably take a 3 month decon break to begin gaining again with anything.
I wrote a thread on this called “force thresholds” linked at the bottom of my signature.