I too worry that it's going to be an entirely different job. The cast times never bothered me on mch because you had multiple ways to ignore them. Besides the casts fit thematically with gauss barrel. It's effectively an electro-magnetic rail gun so you're charging it up to accelerate the bullet. I feel a lot of the new animations don't fit well either. At least I liked what I saw with rdm so if I end up not liking mch I still have that.