I've done it.. its not worth it..
Secondly.. your NOT holding a wider diameter...
You hold the wand.. not the hose.. so you're holding 2'' max.
some 1 3/4''.. and many.. 1 .5'' tubed wands.
I think the closest I would want the 2.5'' hose to my wand.. is about 25'.. being a 25' whip hose.. of 2'' flex vac hose.
I do that alot.. on shorter.. 75' length runs.
Good dry times are 3-4 hrs.
With
glides.. down to the 2 hr range..
With 2.5 '' hoses.. Y's.. using both ports out of the vac tank.. about 1 hr.. or down to 45 mins or less even.
I dont see the need to get it lower than that.
You pretty much eliminate wicking...
Its like stepping over 20s to pick up 1's.
It gets to a point where its time to focus on something else..
Drytimes are over rated.. if CLEAN isn't achieved.
You can cheat dry times all day.
HOw much prespray?
Do you rinse or do you flush?
Do you jet up or jet down?
Do you make a quick dry pass.. or a slow deliberate one?
Its way too subjective.
Drytimes are like HEAT.. i pay NO attention to all the garbage chatter.