OK so the "Long" time of the delay isn't as long as I thought, turns out I'm just impatient...
The minimum delay time is about 1/2 a second, and the max delay time is 40 seconds.
I've also decided I'm going to add a small momentary NO pushbutton for both front and rear wipers, which will work just like the "mist" function on most cars. For some reason I find it annoying to have to turn a switch on & off just to cycle the wipers one time.