Numb nuts....errrr, Greenwood60 made me a few finger spools. I thought they were pretty cool and just wanted to share my thoughts about them. Most of the ones I got were prototypes, but I think he is going to be making more soon and he make make some changes to the new ones. So I will let him chime in on that matter.
I got 2 types from him a 25' and ~40' ones. The 25' ones are about half the size of my LM 25' finger spools and the 40' ones are about 3/4 the size. They are made of delrin and are nicely made. What I liked about them is that there is no longer a hole that goes through the spool, just smoothed indentations. It can now hold more since the spindle is smaller in the center. Also, it makes it much smoother when laying down a jump. Your fingers just hold a little pressure and it rotates evenly the whole time.
I put the 2 Greenwood60 spools next to a LM 25' spool and a HOG 160' spool for reference. The white spool is the 40' and the small black one without a clip is the 25'.