If the 2G B6's shock is as bad as the 1G, even full stiff, it is going to be too soft. When Bobcat had his B6, he could bottom it out riding solo with no luggage and I'm guessing he close to your weight, maybe a few pounds more. He tossed a B12 shock on his and it made a world of difference. IIRC, he got the B12 shock for next to nothing from a B12er that was upgrading.