Dual Expression Pedal (EV-30)

How is the tension/responsiveness? I have a pedal that flops down or up and does not stay in place. Does this do that?

What is a good stage/road worthy alternative to this pedal for use with roland vr keyboards? something with 1/4" jacks and a metal housing, ideally.

Will this pedal work with HX effects

Does this pedal fit M-audio Keystation 88 midi controller?