DD did only about 5 months of old L6 and until this week her (now old) gym wasn't great at uptraining, so those 5 months were the extent of her BWO on beam - she had back pain which she didn't tell me about until started competing, and her MD didn't realize that it could be serious (nor did her MD mom at the time). BUT HER COACH DID - and once she fessed up she did very few BWO for the last few weeks of that level, then went right to training for BHS-BHS as a level 7...a year later she could go back to BWO on beam no issues....(well, fear issues with connecting the other series, but that's different). Her technique had much improved with good coaching and the strength she had gained - but she knows to do no more than she needs to keep the skill clean. She's strong and reasonably flexible in her back, but was using her lower back for the bend, and her legs weren't following through early enough - I see lots of smaller/younger girls doing similarly - luckily her coaches (both the old one and the new one who was at the old gym at the time) recognized that it could become something and acted...