Does anyone notice if Smallwood inserts his fingers in a fingertip, semi or "whatever?

I use to drill for a young man a few years ago that used the "partial" thumb"  In an effort to get some control, he went all the way down to where his fingers were conventional.    Lost very few revs, but got  lot better accuracy.    Anyone interested in this grip needs a "friendly" driller and some old balls to drill and get the pitches and thumb placement correct.    The thumb and the fingers are almost in line with one another.    Pin can be moved around to effect the track.   His track changed each time we changed the finger depth.   Don't use "regular" pin placements.   Pin placement will  be determined by where his track runs and "full roller" type layouts.  Get this layout correct for you and if you can  make the physical change, it's a killer.    Notice that he is a bit early, body low, and has a soft release .     Can't be "cranking " with this grip