I learned F2L a while ago. Before I decided to switch to Roux. Thing is, I usually end up inserting pairs. Sometimes I'd put the bottom edge along with a corner, but I only do it every 5 solves or so. It's not a reflex for me.
After watching
Donovan's Roux tutorial on Youtube, I realised that it never occured to be that I could build a block "upside down". (I solve with white on bottom, since I started learning OLL/PLL, which yellow on top, so I'm used to tracking the yellow sides when I'm doing my CMLL) I'm used to build it with the white edge and "white corners", and I can't help it to build it with the actual white line on the bottom. I want to get used to building it no matter what the orientation of the block is, and then do some L turns to orient it the right way (assuming I'm building it on the L face). Would it be worth it? I feel like I could save a couple of moves and that it might be easier to track pieces after my inspection.
Any tips? I was thinking of starting by positionning my white-blue edge (assuming I'm first building my blue block) somewhere on my next to the blue center, no matter if it's looking up, down, back or front, and work from there. Of course, at some point I'll have to practice building my block starting with the blue-white-orange corner and, let's say, blue-white edge, and so on, but I think I need to start somewhere. I don't want to start going in every directions at once... Does this sound like a good plan following the Roux philosophy?
I hope this was clear... English is not my first language, and even though I don't make too many grammar/spelling mistakes, I feel like I still have problems organising my thoughts.
Oh, and I usually average sub-75 with Roux, with a 20-20-10-25, since I'm still cycling for EO. I start working on it soon.
Thanks a bunch!