ouch, that might get you in trouble in those 5% it is a little off. It might be better to use quantize to get the same result for the full 100% of the time.
I let Traktor auto beatgrid most of the time, as long as the BPM is correct I don’t really need the grid to be perfectly aligned with the beat. Sometimes the mix sound better when one of the tracks is a little behind or ahead - it depends on the tracks.