You don’t need beatgrids to match beats by ear mate
I spend countless boring hours gridding tracks but there will always be ones that either arent gridded at all, or that you screwed up on.
ok mate if you are going to mix everything by ear you can actually turn the phase meter off in the deck preferences. ohtherwise it can be a distraction swinging left and right all the time.
if your using vinyl/cd’s to mix its doesnt matter. however i found (by trying to cut corners) that not beatgridding and doing it by ear through midi the mixes never did sound as tight or perfected as they did when they have been gridded. thats why now i alway grid the tracks i plan on playing but theres always the tracks that dont get round to or some oldies that are picked out that you just ave to do by ear