If you are desperate to be just a little bit faster, and want to basically relearn CLL (super gay) then go for it. You might want to check out a more fun/intuitive way to solve, such as Guimond, SS, OFOTA or hell even Sortega! I stopped learning CLL when i realized it was gay. The whole experience sort of ruined 2x2 for me. There aren't a ton of people who know EG-1, but most of them are top tier 2x2 solvers. If you enjoy CLL and want to reduce step 1 movecount then EG1 certainly is what you are looking for. Also, get good at "EG-2" style anti-CLL, to force R2 F2 R2 on easy EG-2 layers.