Do not fear Dark soul for that is exactly what I have done, not managed to get much time on the bow since the weekend but I as you said I have not pulled the bow any further because I'm worried of worsening that hinge, while this isn't my very first bow its my first for a long time, on all of my previous bows there's always a weak spot that's been over-strained and pronounced where I got impatient and frustrated with the tiller that explains why Ive been going as slowly as I can.
So far I scribble pencil across the area that I want to remove then scrape it off with a cabinet scraper try it on the tiller this is much more slow going than what i used to do but so far I haven't managed to ruin anything.
I have done some more work on the bow but it was more focused on getting the right limb bending ill go back to taking more wood off the middle left as well.
Just for future reference if I want to get rid of a hinge can i remove wood before and after a hinge (in this case obviously I need to shave down the middle left but what about the extreme tips?)
For your pleasure here is the last bows I made, I'm not sure if its obvious in the tiller but in the lower right limb there is a weak spot (I know the bottom nock is missing, I pressed the bow into service to test my new tiller)