I'd suggest going with a weight that your boat can handle - I wouldn't run anything over an 8 lb ball if you are in a standard tinner with the rigger clamped or secured onto the gunnels. Your 12 footer with the 9.9 probably is a single sheet of tin with a top rail on the gunnel and not made for a rigger.
There is a risk in bending the gunnels in heavy chop and at higher speeds - they put alot of torque onto the base.
For a full size tinner with heavier gunnels - the 10-12lb weight is an ideal all around weight.
|