I used to have a desktop keyboard with the nipple in the traditional middle of the keyboard configuration so your fingers could stay on the home row but something about it was off maybe the acceleration or something I'm sure I could've fixed it in software if I were smarter but it never just worked like the Thinkpad ones
pro tip if you don't want to buy another cap (or you don't live in europe/US and only way to buy is by buying enough to open your own trackpad cap's store):
You can remove the cap, put a piece of soft paper or cotton inside the cap's hole and it will give you more leverage.
It is basically the same effect of using a taller cap.
You will need to tweak the amount of cotton/tissue to your taste, but I can use my trackpad with 3.0 sensitivity.
manwhile, before I mad this "DIWhy", I had to crank up to 10 and even that was not enough. Also the mouse basically teleported across screen with minimal touch (but still huge pressure to pain the tip of my finger)
At least this is the vegan option. They used to be made from cat snouts.