Roy, First I spray the area where the decal will be with some Future floor polish,let dry.
While the decal is soaking i'll brush on a light coat of Micro Sol on the spot where the decal will be.
Touch the edge of the decal paper to a paper towel to drain off extra water and slide the decal in place.
When it's in position "Lightly" spread more Micro Sol on top of the decal and wait a few seconds for the Sol to soften the decal.
I take a Q-Tip that I dampened(not wet) with Sol and "very gently" roll it over the decal. This will force out the air bubbles and push the decal down in the zimmerit.
The Micro Sol will tenderize the decal so be sure you've got it lined up straight because you can't be pushing it around or it's curtains for the decal.
Practice with some extra decals on something to get a feel for it first. "GENTLE" is key word for sure.
After the decal dries put your sealer coat over the top and then do your thing. ;D
That's the way I do it and it works for me every time.
Good Luck
Tony lee