Depends on how far you are going with it. The F2L part can be done intuitively and its better in the long run if you do intuitively. The last layer you need 7 OCLL algs and then 21 PLLs. If you already know CFOP then you should know those algs already. The advanced approach is ZBLL which does CO CP and EP in one algorithm, buts it has a rediculous amount of algs. I read in a thread somewhere that very few people have learned them all. I think 4chan was one of them.
This is the only tutorial I used.
Is it illegal in a comp to have rubber stickers?
I need to find a way to keep a better grip on my SQ1 and thought about applying something rubber like to the place I hold it, since I hold it the same way every time. Or perhaps rubber gloves?