0,2” in two months is great!! Congratulations!! Can you describe sometime how you do the SO? To my understanding you do SO while seated. I was thinking to ask from the workshop to manufacture something like a stand which will be at the height of my body when seated (will be able to modify the height of it) and on top of this stand will attach (weld) a wheel. The plan is that while seated I will connect a piece of rope to the weights and the other end to the hanger Obviously the rope will go through the wheel. I think this will be the most comfortable pulling device ever. I don’t know if I will succeed in terms of gains but hopefully I will. I am just not ready yet since I decided to stick on BTC.
As for the weight and the vac hangers I am afraid that around 10kg is their limit. I don’t think you can hang more that 10kg with a vac hanger. But this is a different subject to discuss another time.