As far as drilling holes that sounds like they are going to use pour foam. Does anyone know if that is the case? It seems some blocks of foam sealed in glass could be 5200 into various places. Like the underside of the deck, sides, back corners, ect.
If they are pouring foam that can be a disaster. Having experience with this in small cavities. Things can be get outta hand fast. Stuff will get blown apart and warped. I know this because I have unfortunately experienced it first hand. I would not want anyone but the builder to do this. Instead of some mechanic at a dealer with zero experience. That is not a normal repair for a dealer.
The CG will literally pick your boat up. Take it to the test facility. Test it, tell what you need if failed and and bring it back all for free. Absolutely no reason for a manufacturer to not meet standards.
I have said in the past and I think some other well known designers have commented on these skiffs being over powered for ratings. The math just never added up before you even got to level floatation. Some of these skiffs have very low transoms. With just a small riser for the engine.
You can submit to CG for an increase in power rating. But you have to actually do stuff to meet those requirements. Like add additional flotation and transom reinforcements.
I’m just a nobody but I understood this in the CG handbook. And built my skiff to be tested by the CG. If I was going to fail tell me now. Not ten years and hundreds of boats later. Not to mention liability if someone got drowned because of manufacture didn’t bother. I have two large rectangular foam filled boxes on each side of the rear. Two large foam filled sealed areas under the floor outboard of the stringers. And I reinforced transom with full width Bluewater Coosa doubled up in the center. I feel very confident my skiff will pass any of the standards for a 60/70hp outboard. Just don’t get how a company with the people and resources MBG has not to do the same.
HpXs for comparison notice the narrow low transom with riser. Just going off the basic CG formula before even getting to floatation. I don’t think it would rate for 40hp unless they got an exemption. With my height and width I came in at just 40hp.