I wouldn’t worry about it too much!
Each activator has his own style, you’ll soon settle into a comfortable routine.
RST? or similar should work fine if you need a repeat. You’ll find that a lot of chasers usually give the RST twice or more anyway - the first time you can copy it, the second time you can double check.
RST isn’t needed for the SOTA log, as the saying goes - ‘no one dies’ if you don’t copy your RST. After a while, the common reports 5nn, 55n, 57n really stick in your mind and it becomes almost automatic transferring from CW to the log paper.