Nah I've always used a slightly wider stance, its not excessively wide, not even semi sumo or anuthing, just a bit wider than most use. You think it may have something to do with it?, I did some closer stance ones today with lighter weight as I was wondering if this had something to do with it, it was hard to tell if it helped, but I didn't get the niggle with a closer stance, although I only really get them after training so its hard to tell. Think i should try some with a bit closer stance?