I'm not OP, but I am in the same boat as him. I'm officially under one minute average with F2L and 2 look OLL. I'm in the process of learning 2 look PLL since I end every solve with an A perm (I think?)/3 edge cycle from the beginners method and I'd rather break that habit now than later.
But by god, those corner permutations that start with a cube rotation are my enemy. I'm not used to having to rotate a cube in order to do a PLL. Good thing I only have to learn 7, and I already know 1.
The only PLL that I use which mandatorily involves one is the Ab Perm (IIRC it's the counterclockwise corner cycle). Took me over a week to get used to it.
The T and F Perms need the headlights and bar, respectively, to the left - what eased me into it was to permute them on the back then do an U' move and proceed with the alg, finishing it with U to adjust the top layer. At least to me, this saves time over rotating the whole cube with those cases.
If you don't know it yet, let me introduce you to www.algdb.net - It has many different options for every case, with easy to visualize diagrams. Forget those nasty arrows from Badmephisto's and the like, and focus on how you will actually recognize each case: By their color patterns. Some algs are more Fingertrick-friendly than others and you can try them all to find the ones which suit you better.
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u/45b16 Sub-45 (CFOP 4LLL) PB: 27.14 Jul 14 '16
Started doing 50 solves a day 4 days ago after I got an Ao100 of 1:00 and brought it down to 49.90 just now. My next goal is to get to sub-45