Title pretty much says it all. I think Rakk Attack would feel much better to use if we could continue to fire while using it. We can already do this with grenades, which feels great, but Rakk Attack feels a little clunky when you have to stop shooting.
One of the reasons boss killer Fl4k is only build worth playing. I used it once, stopped firing my gun with ridiculous cast time for minimal damage and havent since. That was September 14, at least they buffed it though I still won’t use it.