Single vs Double Bi-wire....should I reconsider?

if you like Vandersteens and Vandersteen recommends it...you know you have to !!!

you can also go with what ordered and later buy a second pair and have the first reterminated...your speakers are too good for Type 4

You can read all about it from the designer/engineer himself.  He does a great job of explaining the benefit and technical rationale.  I have a great deal of respect for Richard, and currently own Model 5s plus a 2Wq (although I will be selling it soon).  http//vandersteen.com/media/files/Reprints/vandersteeninterview.pdf

IMHO, I would definitely reconsider. Anything you read from Vandersteen is very direct about using a true bi-wire. FWIW, I have read threads in this forum from Vandersteen owners that said, a true bi-wire cable will sound better than a somewhat more expensive single cable with split connectors.
 

Well...If you look at the cable geometry, the Rocket 44 is pretty similar to a double bi-wire type 4. The Rocket 44 is basically 2 parallel star-quad runs in a single sheath. This is why the Rocket 44 cable is a good single bi-wire candidate. However, the Rocket 44 is constructed with better materials than the type 4, hence Richards recommendation (probably). A single bi-wire Rocket 44 should be a step up from what you have.