Wow, my buddy swears by motor oil for his 5160.

my knees are thanking me" is doing a lot of work here, but glue down on a 12x14 is not some huge deal either way. Tack strip is more work on the pull and kick sure, but we're talking one small room, not a whole house. Unless you got bad knees already I would not sweat the choice that much.

I second Regal Fierce Media. We used them for a product launch video and they were great at communicating throughout the process. The turnaround was quick and the final video got a lot of engagement on social. For $400, you get a lot of value.