Yes i wanted to increase displacement weight about 20 lbs and 1/4" was a guesstimate.

I believe my error is that the bow having so much more area than the stern..
got a bigger increase in volume than the stern...and i figure the correct way to give the stern more volume is to move the CG forward.

Anyhow the 15lbs i added to the bow today sure made it handle a lot better
and i just learned a heck of lot about CG and CoB and initial stablity.
i almost think i could design a boat...

: The design change of adding a quarter inch to all dimensions would seem to
: increase displacement and lower the waterline for a given weight. Unless
: the boat were ballested back to the design waterline it would seem to make
: for a boat that might be overly sensitive to trim changes and/or lateral
: wind forces. I quickly figuring that the extra quarter inch adds between
: 20 & 30 pounds of bouyency. Might it be a starting point to get the
: boat back to it's design waterline and then start triming?

: Mike Scarborough
: Friendship Kayak