Dear Hakan

while it is widely agreed that a boat with glued beams is stiffer, yr two other statements are very controversial:
1) as far as I know all the A cat boatyards which sell both glued and NON-glued boats actually charge - from EUR 200 upwardly - for this latter optional. On the contrary, according to your opinion, Marstrom sustains an extra cost of 1000-2000 euros to fit its A cat with bolted beams.
So are we all paying more what is costing less?
2) according to my experience the weight saving between the two options may be estimate at 0,5-1,0 kg (instead of the 2-3kg you indicate). Is this due to the fact that most boatyards build their hulls the same way (i.e. with the structure needed to transfer the load from the bolts to the hull) even if the hulls are due to be glued?
Thanks for sharing yr thoughts