I have recently started working up in singles to where the weight slows down, then dropping to the previous weight and creeping back up in smaller increments till it slows again, and then going back down for a few singles with something I know I can dominate. Ususally I do like 5-8x1 of working weights.
Im really liking this because I can deadlift every week so far, but Ive been doing it for 3 weeks so I will report back when it backfires and I hit a wall. I came to this since after I got past 405 I would tear up a bunch of sets of 3 or 5 and be out of commission for a few weeks before I could do it again, and it wasnt as fun. I missed the frequency and I like this better so far.
I save the higher reps for back squats (which I now do after DLs). Deads I dont like going over 3 or 5, and this singles once a week thing is working for me so far.