I’ve taken rasp to grips and side plates when a bow didn’t suit me… but had a hobby builder friend build me limbs…they were in perfect tiller when he finished, but when I got them, they were 3/8″ off…sent to my new bowyer and he adjusted them to right tiller…but it did take off 2# come to think of it.

Nice to have guidance or a fall-back to undertake major projects!

Hopefully, this input will help our original poster.