unfortunately i have read a few posts on Phantoms and dropping the dagger-board
people are saying silicone, but that can wear out ...
there are other lubricants that are more "water friendly" and last a little longer
i use SAILKOTE on sail cambers and dagger-boards IF necessary
i have Fanatic Ultra Cat and Mistral Equipe I
they do NOT seem to have these issues - they have others ...
one thing i can suggest - is testing on land
make sure the centre board is seated properly and can be dropped
add sailkote if necessary and try again
if more is required - SB team needs to chime in and maybe purchase place needs to verify if all is well ??
wish you lots of luck with this board - it is on my short liste
so, keep us informed please
ideally would want 377, but cannot afford it
am sure this can be worked out - or just needs a "breaking in period" !!
lotsa luck and TOW/time on water !!!