I was wondering if there was a recommended input method to piano an EX move. The regular piano input method is :lk::mk::hk::lk::hk:, so for EX would it be :lk:, :mk:, :hk:, :lk:, :mk: + :hk:?
Yes. If you find MK+HK difficult, you can also do LK+HK. Just experiment with different techniques and see what works best for you.