i would try switching...squat before deads for sure. that way your already warmed up tp dead and can start heavier and not have to do all those light reps. example- if u go up to 500 for ur last set of squats then start with 400 for ur first set of deads. 1 rep sets with about 10-15min in between

weel if your a big guy, you might want to try sumo. it takes a lot of your back out of it and u use more legs. i switch it up depending on how my back feels. i would try to get in the habbit of training them on the same day. got to do the same day at a meet!