I brought up an idea during the pug and I think it'd be interesting to at least try it out.
Mid cap is just stupid right now in general, so you can
a) increase the cap size area + decrease it to 15s ish
OR
b) keep the cap size area + decrease it to something really small like 5-8 seconds
I do think b) would be worth giving a shot? I can't think of any KOTH map that has ever had anything like it so we don't have much reference to whether it'd be awful or fun and unique.