Welcome Akronix….. If I understand what you are trying to achieve … it is to reduce the break out momentum of the boat by removing and using the heavy keel of a boat as another anchor point.
In reality, what you would achieve is the loss of dynamic stability of the boat in extreme weather
, causing it to shear and hunt around broadside to wind
and waves, causing much greater breakaway stresses, than the submerged weight of the keel. The keel itself does not have that much holding power as it easily slides along the bottom instead of digging in.
In extreme weather
at anchor, boats with a heavy foot low down in the water
, have a larger GM, fare much better than light multi hulls which in smaller ones have actually gone airborne and flipped.
In case of a breakaway your keel is your integral strong point to protect the thin hull
from destruction on the beach. It is your last defense so not advised to remove that protective bumper.
If I were thinking dramatically outside the box of ways to secure a small fiberglass
sailboat from an intense storm where protection and holding power was very very poor:
I would consider removing as much interior
items as possible.
Fabricate and stuff lift
bladders within the interior
Then….purposely sink the boat in 30 feet of water in a soft patch.
Lay anchors fore and aft and lash down to prevent shifting in the surge.
Pretty extreme, so much better to invest in the best ground tackle and weather knowledge, while staying close to safe weather havens in your area during the TRS seasons.