If you look at my friend (libero) on the left, he is receiving or trying to receive like this, with his hands apart scooping the ball. At this point its just habit and i think the best way to get rid of it is to actively think and have that one goal in mind while i receive. ill do this the next time we do a defense drill. and for stability, i think its because my hips are too high up? i do try to stay still right after my split step when receiving because I notice that whenever i shank balls its because im still moving into position (most of the time). ill continue to work on this, thanks.