I just replaced the front sight on my MP15 with a YHM flip up front sight. After getting everything tightened down I realized it isnt lined up properly. Before, if I used both iron sights with the eotech in the middle, everything lined up perfectly. Right now it's off enough that it barely touches the center dot in the reticle now. The person who installed it stripped out the cheap strange size screws that hold it in. Should I try and get it off and line it up properly or just zero everything?