Stacking Practice

I need to start practicing stacking Kastle the opposite direction from the way I always do it. I stack him the direction that is easiest for me but the other way is what he'll need to be comfortable doing when he shows in April. He's entered in an SV show and has a "real" handler - someone experienced in the ring - to stack and gait him so I just need to make sure he's comfortable with it. Hence, the stack is not great but he's comfy with it.