One bad Tuesday with a miter saw taught me to check the fence every time
Last month I was cutting baseboard for a living room in Spokane and my 45s kept coming up short by almost an eighth. Turns out the fence on my DeWalt had drifted after I bumped it moving lumber, cost me two hours and a full stick of poplar. Now I check it with a square before every job, even if I just used it. Anybody else had a fence move on them without noticing?
I saw a thread on a woodworking sub about this same thing and a bunch of guys said the detents on those saws can get sloppy over time. One guy kept a little machinist square right on the stand so he'd have no excuse not to check. That eighth you lost adds up fast on trim, drives you nuts.