You are quite right to show Arjan and this forum the truss-model.

But you forget to mention that in this model all the elements are theoretical connected "unjerkable" together.
Which isn't true ofcourse in real life.

So, in our dolphin striker all the vertical downforces are lead, no better, diverted to the bolts on the side. And these are not unjerkable.

There are a lot of catsailors amongs us who don't realise that these almost hidden bolts ,underneath the frontbeams in the dark corner close to the hull, are the key elements of the whole sturdy dolphinstriker. And therefor also the weak element!

With regard to your remark about the weight profit because of the truss-concept, I like to point out that the frontbeam (and aftbeam) have more loads to deal with than just the compression load of the mast.
They also hold the hulls together and therefor have to withstand a fairly high torsion load by the hulls.

For that reason most modern cats don't use simple single aluminium pipes or profiles anymore.
They all have special designed separate inner profiles to withstand the load which a cat with two hulls brings on.



P.S. for all these reasons I made my cat with no dolphinstriker, but with special constructed beams (of wood! and carbon). And they hold (knock wood!) already three years in high seas!