I have been going over to the Vineyard on and off the last 4 years for one week. Staying at Capt. Chuck's house in OakBulfs. Short walk to the harbor. He also, rents a slip right there in the harbor. Chuck is past president of MSBA is you did not know. You can contact him directly thru his web site at:
http://www.candocharters.com or thru the MSBA web relay.
Casper
Figured I would fix the link seeing that I developed that website for Captain Chuck