Oh - the up and downs of archery

:
Having steadily worked through most of my 'errant arrow issues' over the last 9 months, and at last shooting at a first class level (long way to go yet) - I'm having a particular problem with my third Ring finger on my release hand. The more I work on it the worse the inconsisteny becomes - most frustrating!

High's and lows creep in to rob me of points that are otherwise 'custard bound'!
Looking to good advice, it's seems that 15% of the draw weight should be held on this finger ( so says KiSic )- But how to acheive this consistently is eluding me to the point of chopping the damn thing off!
One simple answer to cure the ring finger problem Other than decapitation would be to not use it atall and completely take away this inconsistency.
Does anyone out there shoot target with a recurve well with a two fingered release?
Does anyone have any advice on this -
Before I reset my nocking point, tiller ..and chop up my tab.
All advice and your findings gratefully appreciated.
Thanks