Before un-doing the bolts you need to remove any pre-bend in the front beam. Ideally when sailing, the front beam should be flat - Rig tension / mainsheet tension etc will bend it down....
So your front beam should be bent up - remove this before un-doing the bean bolts or you will cause problems
Since that is my old beam, I can attest that there is not much prebend in it*...
however, any prebend that exists due to the tightness of the dolphin striker post would be between the tips of the dolphin striker 'arms' and would not affect the outer lengths of cross bar that attach to the hulls - they would still be as straight as the day they were born. I don't see how this might be a problem when attaching it to the hulls.
*When I upgraded my 5.2 post, the upgrade manual said to put an inch of prebend in the front beam. I could not find this kind of information anywhere for the 6.0 and my dealer told me to just get it tight.
