Yep, treat it as a three part process. Definately do NOT mix the two to use at the same time, this defeats the purpose of having them separate in the first place.
First part it to use the Set as a wetting agent before applying the decal. If you are happy with the decal's appearance after that,,,,,,you can just stop and apply your clear coat.
If you want to us Sol, use that as your second step,,,,and do not disturb the decal while it is drying, if you feel the need to pop tiny bubbles, you can do that after the decal is dry. When finished, you can apply your clear coat.
Then, a third step is available if you have realllllly stubborn decals, that is to use the Solvaset, and you can use it more than once if you have to, or if you still have a bubble here and there to pop.
Just remember to always give the MicroSol and Solveset a chance to dry before thinking you need to do it again. And ignore that ugly, bubbly, bent up appearance you will see after the Sols begin to work, and before they are completely cured.
Rex