I am trying to learn OP/OP execution with letter pair memorization. The problems I am running into are thus:
1. In OP, you are memorizing stickers, but it is actually a piece-by-piece method. Thus, when I break into new cycles, I always have to go back and associate the stickers with the piece that was actually solved so that I know which pieces are available for cycle-breaks. This is probably the most annoying aspect. I've heard tapping helps, but it hasn't payed dividends thus far.
2. Initially, thinking of an object to correspond to each letter pair is a pain, particularly for Q, X and W. It currently takes me anywhere from 10 to 15 minutes to memorize. I am also beginning to think that the common adage of "you just need an average memory" is probably only true of being able to solve BLD at ALL, whilst memorizing the cube in less than one minute is probably a gift. What I might try is to focus on phonetics, and not spelling. Incidentally, I have been sufficiently bothered by the first issue that I have started drilling the sub-sections of Makisumi's 3OP blindfolded method, simply memorizing the digits. For me, this makes the memorization much faster. However, I know that starting with M2/OP will inevitably lead to faster times in the future, so what I could do is try to implement a 1-24 numbering system.