USMLE Study partner is a good idea
In my personal experience I found that a study partner is crucial.
We talked over the phone and on the Internet daily about progress. We encourage each other. We shared materials. We asked questions to each other.
I noticed that when you discuss something with your friend you will never forget that topic.
I encourage any one who plans to take the USMLE and specially step 1 to really look for a nice helpful and serious partner.
All the best to friends out there.