Damn, I've never seen that U perm. I'll have to try it! It's funny, the 3 U algs showed in that vid -- I used the first one for the longest time, but recently I switched to the second one, and it's in my muscle memory now. But the 3rd one looks really fun and if it's faster, why not. You're right, that alg shows up in a lot of solves.
I'm not really at the point where shaving a quarter second off my algs is what I need most.. I'm averaging like 25-28s depending on the day :) Mostly working on F2L, and memorizing the last few PLLs that I don't have yet. I'm impressed that you're working on full OLL... that's down the road for me! :)
While I'm here, in other news, I beat my PB by 2 seconds a couple days ago, thanks in part to a PLL skip. 16s!