GUII ZD30DI Wgn
If your solenoid has been out of action for a while it could very well have a few sticky points, these should even even out, when I first brought mine back on line I gave it a dose of wd40 and then flicked it out.So I swapped back to the VacSol but left the Tillix in the system.
Driveability, I would say has improved. EGT seems lower too.
Haven't had a chance to test on the highway yet.
I have noticed a little bit of boost needle bounce around 60ish in 4th gear though?