Step I Advice: when to schedule exam?

[mas7]

I am done with all Kaplan reads and a couple of FA. Also did DIT2011 but that was 6 months ago.
UW scores aren't upto scratch though. Have done 27% of UW all timed random ques.
AVeraging 70%. Started with 74, dropped to 72 and then 70 has been fairly constant over the last few blocks but scores are fluctuating widely. In 13 so far blocks they are:
74 65 78 72 63 72 67 74 76 59 78 70 57
I was aiminf for 250 but now Im not so hopeful.
Havent scheduled my exam yet. Bought april may june triplet didnt take date.
What date should I target now?
Also does any1 have any suggestions on how to improve on this to get to my target score?

 

[purplelife]

It would be better if you use the 2 main sources, FA and Uworld, to bring your self to where you want to be according to the scores. Once you are satisfied with the amount of knowledge you have and your scores are not fluctuating too much, maybe then you should sign up to take it.