Grading does not correlate with success in a neat linear way. However, having done 2 cycles in columbia I found all providers to be sketchy with details. Like they didn't want me to worry my silly little head with important medical stuff. I made a point to ask for a printout of follicular count and size after every measuring appointment, and my exact numbers for bloodwork. Otherwise it's all "reasonable", "nice", "some grew more than others" and "blood work looks good"... used to irritate the heck out of me. Every single time I politely asked for every number and wrote it down. If they emailed, I would email the nurse back asking for stats. If Dr or nurse called about embryos, same thing - grades, not just how many. By second round they all knew I wanted numbers and ponied them up without as much prodding, forgetting only occasionally. You are your best advocate, OP, be polite but firm. It's your body that's enduring all the meds and procedures, it's your embryos, if you want more details, ask.