I am in NJ out of Waretown, have sign/glide, needed to use it once inside Barnegat Bay. Worked fine, they were very attentive on the phone and followed up after, actually a very personalized service. The representative asked me a few questions that demonstrated they actually knew something about boating and ensured that I was safe. They hooked me up with BoatUS for the actual service. The only issue I see is you can’t contact them directly via VHF. So if off the beach out of cell range there is an extra step involved - but the instructions are clear. If you call a service directly (BoatUS, SeaTow, etc) they will not cover the full bill, you must go through sign/glide.