It scares me when I hear "had my bow tuned"[&:] Were you a part of the tuning process? Anyway , your center shot could have been way off before and now you need to make other adjustments to compensate. You probably changed your anchor point enough by dumping the kisser to make other adjustments as well.

Put a spacer between your sight and riser , providing your shooting a right handed bow and it should give you plenty of room to sight in and bring your pins back into the middle of the pin guard.