I slow acclimate everything.
I check the bag water, and release as much of it as I can after its checked, into a container, for disposal, I have a couple 4 gal pails, and I relase the bag into it, with a cup or two of the tank water, then drip a couple drops a sec into the pail, fish 2 hrs, inverts up to 4 hrs, works for me.
I havent transshipped anything in years, those were much longer acclimating, and far closer in the water checks. Right now 3-4 hrs drive is about my longest and those are bagged in O2. Osmotic shock can be a real killer along with a major ph jump.
Once the fish/inverts are acclimated they are netted out and added to the tanks/vats. The water is disposed of.