On a trailer, they all seem to be supported by the tunnel...
what about when they are built on the shop floor? Are they supported by tunnel? Or by sponsons?
Is there any good reason not to support on sponsons ?

How are they supported when displayed during boat shows when they are not on trailer?

Cats are easy to support




Small newly designed Cats , not so much.





Too many support points required.

I have seen many supported at the edges of the tunnel/

My Skater is supported by the inside rails of the sponsons with backup support in the tunnel.

You can see it a bit here

[ATTACH=CONFIG]564952[/ATTACH]

Like Cash Bar's, supported on the spray rails with two "centering hoops".

Any problem to support by sponsons when in need to work on it and need to be as low as possible?

Depends on if the cat has been declawed.

Padraig