Jugger...    You might can make it work.    In an effort to play dryer lanes I did some work on this.

#1      finger holes need to be oversize, pitched under(toward the palm)

#2      Need reverse in the thumb

#3     I wound up with fingers and thumb really teardropped(like the old days) and span stretched a bit.    The teardropping of the holes plus the extra size on fingers, plus the reverse on thumb will let you clear.

 

Just as a warning......I set up conventional fingers for a "no thumber", and he upped his revs.