Vid, things have been coming along pretty well with my Firepower. Got the first coat of clear down, and sanded the filled inserts almost flat. A few things I did kind of bass ackwards: used the flat sander to take down the inserts and inadvertently reduced the clear around them to nothing, exposing the surface again. I assume that isn't too big of an issue since I will be clearing over it again...but the inserts (some of them) are still ever so SLIGHTLY higher than the surface. Better to try and cut them down a bit now by hand, or just do the extra clear layer and then sand them down?
Also, after the next coat of clear, I'll be doing the decals. Reading through your guide a few times now, it would appear that I should leave the surface clear, lay down the decals, then sand everything around the decals for the next layer to stick to. If I remember, you said to NOT sand under where the decals will be because of decals adhering better to a glossy surface.
As an aside, I just started mixing and using my Createx to repair the play field...you are so right, this stuff is so easy to mix, match, and put down. It's a blessing!