I've ridden the V1 and owned a V2 Aquabot. I can't comment on the V3, but I believe it has some M1 DNA in it. I've also ridden ( ridden meaning more than a couple of tanks) the original SV1 , SV1+3"(?, interim boat, not quit a SVPro yet), and SV-PRO. All of them are outstanding surf boats that...