Hi,
It's a month late but in case any one else is interested my experience of this.
I have recently installed a 5 speaker home theatre system made up of a 3 CP-CT380IDC for front sound stage and 2 CP-CT260's for the rears.
Very easy installation and what turned out to be fantastically lucky one as the front three speakers fitted exactly between the joists in the ceiling before i discovered that the rear of the room's joists was an inch / inch+half narrower... luckily the 260's were an inch narrower as well... rookie mistake to make so it very much pays to check every joist location!
The trigrip installation was a piece of cake to use (power drill, 3 screws job done)
Onto the Sound, Love it, fantastic treble and mid range, however a dedicated sub-woofer of some description really is required to complete the instllation. Reading other reviews and forums will let you know that going in.
I haven't yet tried adjusting any of the crossover frequencies or items on the speakers so if anyone has any advice or recommendations please shout.
Hope you find this useful.
Cheers,
RB