I did take Bonfire and yes it does help some. The ones it catches but about half the time half of the run.
As for Geyser , yep it does massive knockup, it's actually kind of hilarious, but not helpful for what we are discussing because it is over so fast and tbh most of them time it is the lead off power.
But yeah, I'm not liking Hot Feet on a Blaster. Like @Nemusays you better off just killing everything than waiting either for the dots or for them to come back.
I will say other than Hot Feet I am really liking this combo, water for sure is more fun than I thought it would be.