Short answer: maybe.
The details are a little incomplete to give an accurate answer.
1.) You don't seem to know for sure if it is a flare increasing x-hole.
2.) It's unclear whether you originally meant a full replug, or a plug of the finger/thumb but leave the x-hole, or plug the x-hole only.
I'll expound a little on #2 above:
- A full replug would rather obviously allow you to reduce flare potential. I kinda didn't think you meant this one anyway.
- Plugging the x-hole only would allow you to opt for a flare reducing x-hole, which would most likely keep you from over-flaring.
- If plugging only the gripping holes, but leaving the original x-hole, we can't definitively give you a response, without knowing your PAP, the actual location of the original x-hole, and the pin distance above midline. It's entirely possible to keep the x-hole in the flare increasing position, but raise or lower the pin; to alter the layout and land the original x-hole on your axis; or even, depending on your axis measurements, increase the pin to PAP distance and land the original x-hole in a flare reducing position.
Need more info.