Looks like a great job on the first part, Don!

I have never used the Finesse-It, I am guessing it is a final polishing compound? I have been using just plain old turtle wax rubbing compound followed by polishing compound to finish my molds, and it seems to work great for me, so far. I do wax and buff the molds with Partall#2 or Meguiar's 88 once a day for a week for the first pull, or just a couple of times after a few parts.
I found a new (to me, anyways...) polishing compound I am going to try called Meguiar's PlastX. It is for polishing out scratches and swirl marks on plastic headlight lens covers, so I am thinking it my be able to polish just a little past the regular polishing compounds from Turtle wax. I can let you know how it goes, if you are interested.
I see you use West System additives, are you using their resins also? I used to use the 105 - 206 for sheeting wings, but went to MGS for the longer working times. Are you using the 209 hardner for longer working times? Just curious how it is, if that is what you are using.
Again, sweet looking fuselage!!