@amipp93 Like where in the course are the new problem sets? or where can you find the written explanations to the problems that don't have video explanations by JY?
A general letter written specifically is always better than a specific/targeted letter written generally. As long as your reccommender can honestly and meaningfully speak to your strengths you'll be good!
Given that few apps are open I don't think anyone has written any of these yet so you might want to just send a reminder out in a couple weeks and again after the October LSAT.