Good evening from Mississippi. This is my first post, but have been reading post on here for several months. Usually wake up reading and fall asleep reading post on this forum. A wealth of great knowledge. I recently have gone from a SF Range Officer 9 mm to a DW PM9. I have about 700 rounds thru my PM9 to date. Has been a very good shooter, with zero issues. I have noticed it has a very slight side to side movement in the frame to slide fit. It may of been there all along an I am just now noticing it. Would/should this be any concern? The barrel locks up tight, and is extremely accurate. All I have done is shoot/clean/oil an repeat. Any information would be greatly appreciated about the PM9.