There's no 717.
There's the 727 (two humbuckers, 3-way switch and coil splitters) and the 747(two humbuckers, 5-way switch and a single).
I've been lurking in quite a few forums and the word is that all carvins are solid guitars.
The Satanic Rabbit has a DC127 and he's loving it.
P.S. I really think this thread should be moved to te musicians' corner.