How you hold the string is important to determining tiller.
I shoot 3 fingers under and find even tiller is best. Those that shoot split fingers usually find a slight positive tiller is best.
Positive tiller means the lower limb is “stronger” and the string is closer to the lower limb than the upper limb.
As Clay says, when in doubt, start over. If it was me, I’d even up the limbs and see what happens. Then loosen the bolt on the top limb a tad if need be. – shoot a bare shaft to see how the arrow is flying as you make your adjustments. A fletched shaft doesn’t tell many tales.