not to hijack:
i picked up a 2120 parker,off the median on the gs parkway a few years ago - the trailer was too low in weight capacity - the boat only had transom tie down straps on it - bad move.the boat popped off the trailer and slid down the parkway at 65mph - for about 200yards - mabey more...
the boat suffered minimal damage for the impact it took - the washdown pick up was actually "ground down" from sliding down the asphault - the pick up was less than half it's normal height.
the hull thickness in that area was just about an inch in thickness - that was not "overlap" either...
the clamp brackets on the yamaha 4 stroke were broken due to the impact and enertia - the engine cowling contacted the transom cap - and broke the cap on the port side...
the antifouling paint was blasted off - to inspect the hull's bottom for damage ...
i was impressed.
i can honestly state,if that was a grady white,proline,wellcraft,or other low quality boat - i would've picked up toothpicks - those boats would not have survived that kind of impact...
but:
i've seen parkers with big problems too - cabin tops rotted - under warranty still - void problems in decks and hulls.stringer,and transom problems as well.the hull's built pretty well - somethings,electrical systems for example are not the best...
sorry for the "derail" - but,the question was asked...
i did a job similar to this one - an older 19 mako - it hit a bridge abutment at a high rate of speed - the owner wanted the boat repaired...