HAI BARN!

As said before the only good feature on a Pryde boom is the larger vertical contact area, other than that they are complete rubbish (coming from someone who has broken 4 Pryde booms). Engineering wise it makes sense to spread that contact load over a larger area, good to see someone else doing it too; larger bolt diameter is also a good idea, bent plenty of those.
I'm with barn on the flex at the head, it has to be minimal, these flexing boom heads are a stupid idea. It might be okay if you just sail back and forth all day but if you do anything remotely serious on a windsurfing they are a pain in a sport where direct control of the rig is
everything. I had one of those North booms with the flex head for a short period. Needless to say I tightened it up so it had the minimal amount of flex possible...lasted about 3 months them the boom head exploded

As Stehs says the force has to go somewhere, complicate things, **** goes south.
The only bad thing about the Severne booms, the Enigma anyway, is it truly lives up to its name....you can't get one, I've been waiting probably 18 months for one.