I am basically exactly the same hight and weight as you (6'4 - 94 Kgs) and I can tell you that I have tried out a heap of boards in the last 3 months. I tried the BZ Hubb 42.5, Hubb fundamental 42", MS-3 42", MS-3, 43", MS1 42.25" and MS1 43") Out of all the boards I would say that the MS1 43" is the best followed by the MS3 43"... the MS3 has slightly more flotation thand the MS1, but the MS1 is slightly more manouverable. I would say if you are going to ride hollow waves then gett the 43 MS1 and if you are going to surf a lot of less powerfull waves then the MS3. But they are both great. Check out
http://www.factory7.co.za - to get yourslef one. They deliver to you for free, are the cheapest, and they support bodyboarding. If you are in CT and want to try out a board, give me a pm or call / sms me on 083 313 6106. Peter