Do these Cartridges stack?

It's been on my mind so i'll have to ask. The cartridges "short boost" and "float dash" (i think it was float dash, the one where if you dash your bot will hover/fly close to the ground)

They both require the user to dash, and it is possible to install both (i never bothered to try). So do they stack by making you (guessing here) jump and then fly/hover, or does one take precidence over the other?

I have taken both on my un-seraph'd Crim for testing purposes and they don't appear to stack, unless, of course, there is a method to switch between the two at any given time that I'm unaware of.

However.

Short Boost can actually be canceled in midair into normal flight, much like how Float Dash can be canceled/continued into normal flight as well by holding down Space.