Just an M1 here, too, but I’m unsuspending the cards made from UWorld and NBME material. For me, it comes down to whether you consider those resources learning materials or purely assessment materials. If you consider/plan to use them as learning materials, then you might as well learn whatever factoids came from them now rather than later (why wait?). If you plan to use UWorld or the NBMEs as assessment tools to gauge your preparedness compared to others based on the percentiles and/or people’s posted scores here, then maybe you could argue that learning the cards would inflate that.