Those ten reps are only with the "practice" weight, I do at least 30 reps of warm-up-lifts with lighter weight.
I currently don't know my maximum weight on the lifts, for one because I get fatigued durind OL workouts so by the time I'm ready to do a "max" I fail. Second I think it's a psychological problem to do a max-attempt, I can't free my mind before a max-attempt and fail most of the time.
I also think my weak link lies in the upper body, not enough shrug and stabilizing abillity.
I didn't have a real coach to teach me the lifts, but a former national OL champ ('68-'69; he was still a teenager), and I had only a couple of minutes of instruction. That was about 8 months ago, I practiced on my own following articles from this very site and videos floating around the net. He said to me, my form would be pretty decent but can't tell for sure since he's not in the "bussines" anymore.