sorry to hear your kit is so bad. Had a similar experience w/ their Alaska-class CB where the molds had deteriorated as well. Even the replacement hull was - as your's is - worse than the original. However they asked me to send it back and offered to refund the money. (I chose to trade it in for other kits.)
As for the LONG BEACH I have to say that mine was one of the first ones (so early in fact that Jon had to send the instructions and decals later as they were not ready at the time). I do not have any of the problems you described but my hull (the sides, not the deck - full hull) was covered w/ pin holes that Tamiya two-part putty took care of.
Superstructure parts etc. were fine though.
So - maybe return it and look for a "used/second hand" one that is from a first pull?
NB If you need pictures of the "early" pull kit just lmk - don't want to spam the board ;-)
: Buyer beware of the ISW resin kit in 1/350.
: I have 2 in my stash. maybe the older
: releases of this kit were better, but the
: molds have deteriorated a lot over the
: years. I have 2 because one was a
: replacement for the first which was
: defective, and the replacement was even
: worse. In both of my kits, almost all of
: the fittings are completely unusable. the
: mold halves were not properly aligned on
: many of them, and there are hundreds of air
: bubbles in nearly every piece. The hull has
: some big chunks of resin in unfortunate
: locations on the superstructure from places
: where sections of the rubber mold have
: obviously been broken off. When I do get to
: building this for my customer, I have a
: Trumpeter burke class DDG that will be
: sacrificed for all of the detail parts, as
: well as any accessory replacement that can
: be found from veteran models. It is a lot
: of $ for a "kit" that you can only
: use the hull and a few other parts from.