i would recommend 4look last layer (badmephisto has a tutorial on this too) and get your times sub 50 with that.. then use intuitive f2l its the easiest progression to sub 30 imo...
vaseline is good to break in a cube but in my experience it wrecked my store brought after it was in there for about 2months... just wash it out after a day will be fine and replace with silicone spray.
Now. Learn it now. At least the F2L to insert edge and corner together because it is intuitive and you should start learning early to learn solving from different angles.
Last layer can be later when your finger tricks is better cos you may end up practising bad finger tricks if you learn too early.
I would sAy start learning fridrich when you are sub minute with your beginner method. This shows that you are no longer a beginner and that you are ready to learn advance algs and execute them quickly
Someone asked me to teach them to solve a cube, so I taught him the M2 edges and Old Pochman for corners. Except he gave up when I told him he would have to learn more than 5 algs.
I think you could get pretty fast with an open-eyed BLD method, and then you would be totally ready to start doing actual BLD.
Kirjava: I am currently in the process of teaching my girlfriend's little brother LBL. He just started learning last night and is doing his first layer in a bit under 5 minutes. I'm going to get him on CFOP once he can fully solve every time without my help (and I expect it to take 5+ minutes when this happens). My plan is to coach him into sub20 in less than a year (hopefully he'll get faster than me since little kids catch onto things quicker).
Back to topic:
I strongly recommend learning to be color neutral, and learning F2L as soon as possible. I just finished learning OLL and due to recognition issues, I'd recommend learning PLL then OLL and learn them both as soon as you can (most of the argument has been made against that because learning PLL won't help you until you're around sub30, and OLL won't help until you're around sub20, but recog for OLL has screwed some of my times :/).
Learn how to solve F2L completely intuitively first, because it's always nice to see how certain things work. There are some cases that only makes sense to learn the optimal method, but you'll learn most of the time that your intuitive way will be pretty close to the optimal.
The one thing I can tell you from experience: The sooner you learn methods and how to recognize case, the better you will be in the end (because of more practice).
Someone asked me to teach them to solve a cube, so I taught him the M2 edges and Old Pochman for corners. Except he gave up when I told him he would have to learn more than 5 algs.
I think you could get pretty fast with an open-eyed BLD method, and then you would be totally ready to start doing actual BLD.
you know? I've always wanted to do that, lead them into thinking that it's how you solve it normally....then go "Well actually you just learned BLD" XD