Best way to practice U-Air ladders?

[R O F L]

Meta Knight has been one of my favorite character in the series so far, I want to get good with him in Ultimate.
I just started using him again in Ultimate, and I can't seem to get his U-Air combos down.

Anyone know the best way to practice them? How did you master them? Would CPUs (with shuffling) work? Or do I need to use real people to practice?

If anyone replies, thanks in advance.

 

[Orcus Fortune]

I practice them with level 9s on small battlefield. It is very easy to execute, and always remember to hop on the ground if they di away. Just position cpus to the platforms and you’ll be fine