[member=6193]Rob Z[/member] [member=72312]Rick Herrick[/member] and everyone else thank you for the kind words.
I made up these nailers to put up where I couldn't hit ceiling joists, but then I decided to just use them all around the room. Screws to secure them above the cabinets and 2 1/2" 16ga nails shot from the nailgun into studs everywhere else.
Ceiling projection jig suggested in many of the YouTube videos I watched. I found it indispensable for the install.
Despite my best efforts with a collins coping foot I just could not beat the consistency I achieved with this cheap little Easycoper plastic jig:
The tape is to tell me where the nailer blocks are for attaching the crown:
And for the last piece, since I was feeling particularly cocky, I did a double cope joint. And this was with MDF. I was so nervous it'd break snapping into place, or I'd cut it too short, but it just worked:
For my first time doing crown I'm very pleased with the results. I also hate doing crown! I wish I could say I'm almost done but after I fill and paint I have to work out how to hang some double sliding doors to replace the existing hinged ones that are always in the way.
Matt