I think it's a little unfair to say quick stall doesn't exist when it's part of the on site analysis for ubers stall. The main problem is just that it's often not referred to as such, I ran a team which would fall under the title quick stall for a lot of B/W1. I simply never knew it was called quick stall. It isn't seen much out of ubers and is often compared to something like semistall instead.
However I'd wish to speak a little more about sun stall. Simply put how much stalling are we planning to do in the sun? Would it be full stall? Semi Stall? Would it utilize a scarfed revenge killer like the ubers variant groudon teams?
I warned you about stairs bro! I told you dawg!