You really shouldn't be showing us something this good days before a competition. I have a strict rule not to learn anything new this close and you've made me break it!
OK - I have some more but will hold them back until next week

. I spent several hours trawling every M2 thread and resource I could find, and working through various lists of edge comms looking for ones that integrate well with M2, and created a list of selected M2 extensions that in my opinion are the best in terms of turn/time savings and ease of learning/using. When I get time I will write it up and post it.
Marcel, you really don't have to, just memorize in pairs and memorize the other one if you are in the later part of the pair (DB by UF or BD by FU) it's really easy to get used to. Always leave the execution phase as simple as you can. IMHO it is easier than OP edges
Raul is spot on. It is much easier to account for odd/even during memo, when you are thinking about and counting letters anyway. For example, suppose you have a letter sequence AB CD (using Speffz). C is the UF sticker, on the M slice, but it's first in a pair so memo it as C. Now suppose the last two targets are swapped. C would now be second in a pair, so you swap it during memo with W. You would memo AB DW instead.
This is important for two reasons. First, as Raul said, you simplify execution because for each letter you always execute exactly the same thing. Whether C is first or second in a pair, you always execute U2 M' U2 M'. You can forget about odd and even during execution. Think about it like programming. During memo you are constructing a sequence of instructions that you are going to blindly follow later without thinking, just like a dumb CPU.
The second reason is transition to comms and other advanced tricks. Comms is simply about executing two letters at once. You memo exactly the same sequence of letters, the only difference is in execution. That's why I like M2 - because you have lots of flexibility over which letters you do two at once, and you can always fall back on one-at-a-time basic M2 for the rest. If you swap M2 letters during memo it makes your choice of comms independent of odd/even position. For example, the trick I posted earlier is a comm for SL. I can use that both in the sequence AB SL, and also AS LB. It doesn't matter whether or not it spans a pair.
I may change my profile pic so I can be recognised
Look for the table where the grey-haired people are cubing. The other tables are parents
