is the craftsman a DA? that'll still speed up the process!
I use my PC DA on all the steps of zaino though. ZPC, ZAIO, Z5, Z2. Application with the buffer, and removal by hand, unless its being stubborn then I'll whip out a MF bonnet and remove it with the DA as well. Definitely speeds things up!
for in between detailings, check out EZ-Detail. CDillonGo gave me a couple cans for my b-day last year and the stuff definatley rocks for a quick detailing. adds a bit more slickness to the paint than the regular Z6 QD and darkens the paint up. Downside is it only seems to last a week or two, but goes in incredibly fast. Good for those times you wanna clean it up more than normal, but don't want to do the whole Z process.
btw...how long til the superduty's engine bay is looking like your 03's engine bay?