QB wash primer
For those concerned about not "seeing" the primer inside QB kits I too was a little concerned since they are advertised as having been primed. After calling Vans to chat they told me the primer is applied without the pigment so it is clear. Also as a "wash primer" it is not nearly as robust as those two part epoxy primer coats, but that as a result it is much lighter. A compromise of sorts...
I bought a -7 that was assembled with a QB fuse and wings so my research during that process was extensive. I'm glad the OP is happily working on his new project and will get another one of those kits sitting idle into the air.
Best of luck to all the builders this season!
Launching from SC45