I don’t want to detract from Toumal’s splendid work (or wonderful carpet!) but here’s my experience.
I have the basic TCS Base with Hawk-60 grip. I struggled initially to balance it; too tight so it was jerky, or too loose so it kept falling. But incrementally, I found that each time I made adjustments things improved slightly.
The final result - the collective moves with an application equivalent to 120grams(when just above the bottom stop). Sorry, I don’t own a ‘strain-gauge/force-metre, but a packet of 4 Knorr Stock-pots placed on the extreme of the grip caused it to lower.
My advice - With the collective in the horizontal, fully tighten both friction screws. Then loosen both by an equal amount at a time(1 rotation, or half etc) until the collective cannot hold itself when lifted just above the horizontal(greatest lever arm against gravity). Final adjustments to perfect your needs will probably depend on manufacturing imperfections; for me, the upper friction is about half a turn looser than the lower.
I guess this won’t be the perfect solution for everyone, and I appreciate that I could be just lucky, but I just know that by now I’d have several scars and bruises at knee height if I had Toumal’s manufacturing skills
