currently I am following this same strategy... however, I must warn you that even though you get better in CR and SC, which I studied all summer and definitely got better at, RC is still causing a major pain with a hit rate of 70%...
the reason is that since many argue about first 10-15 questions are important, getting RC during those questions will cause a score to drop and recovering is harder... especially if you don't get all CRs and SC right... I experience this kind of stuff in my practice tests... sometimes I even see 2 RC in the beginning and it really causes a lower score... so the moral is... work on RC just as much as on CRs and SCs
on a side note, the probability of getting RC in first 10 questions is pretty high IMO
I am also a slow reader and English isn't my 1st language, so I struggle with RC because I want to save time and answer CRs and SCs, in which I have higher chances to be correct. Need to work on RC