While struggling recently with shooting high I remembered that I had a small run with shooting three under and I shot well with it. Long story short I tried it and was dead on. The thing is my bow isn't tillered for three under and I don't how it will treat the bow. Do i need to get an additional set of limbs that are tillered for three under or can I stick with the limbs I have now?

limbs will be fine. Shoot away.

your good both my Pronghorn Longbows are tillered for split finger but I shoot them three under my nocking point is about 5/8 to 7/8 above center.

Alright thank y'all! That's all I needed to hear.

what they said.  all but one of my bows came my way 2nd hand and tillered for split finger.  shoot them just fine.