F K,
That stinks-to be extremely, overly polite.
Algulfdiver speaks the truth regarding a possible fix.
I had a 2" curved slice in my new (3 dives) Goldcore 3mm suit- and the sew/aquaseal worked very well.
Just be sure to match up both sides of the slashes-especially the "gold" side. If I remember, I"sealed", let dry-keeping it flat and set in place, sewed only the nylon- I tried to not sew through the gold polymer(?), then sealed again. Maybe overkill, but it worked! No problems with the repair after approx 35 dives. Warm water dives, although I doubt that would matter.
BTW, I also used something called "cotol-240" (sp??), which came with the Aquaseal, that was an accelerator for the aquaseal- same results.
Da**-it ticks me off to hear about such mindless vandalism.Have you checked your other gear- a slashed suit is a MAJOR annoyance ,and expensive- but a screwed-with regulator could be life and death.)
Hope this works,
MikeD