Mark... Give it a try. We've done the Grenadines many times and of course you know how long we've spent in the BVI.

Grenadines is a completely different experience to the BVI. Longer, sometimes wilder sails, and a far greater variety in the islands. Bequia is great fun, Mustique an experience, Mayreau and the Tobago Cays wonderful. We really like Grenada as well for a land based part of the trip.