Greg, I've been a finger shooter for most of my life and went to a release a couple years ago. The arrow star rest is a good versitile rest but when finger shooting the arrow at times the arrow will slide between the two metal prongs. The flipper rest is a good go to rest for finger shooters.
If he is going to shoot fingers the most important thing is to have a bow with a brace of about 8" to relieve the finger pressure. The shorter the bow the more finger pressure you'll have.
I'm looking at the Bowtech Constitution and the hoyt vantage which have 8 and 8.25" and go back to finger shooting. The only draw back is that in order to have a longer brace length you have too shoot a longer bow to achieve this in which the bow will be around 41 or 42" axle to axle.
Good luck,

Bobby