I have wondered the same thing from the same reason (I think I got a squeeze from that once). I dove only once since then in the same condition and everything was fine. The change was doing "lung" stretches before the dive session including udayana banda, and in the first few dives (or even most of the session sometimes) to descend slowly, especially in the first 15m and start the glide phase earlier than before (=slower start).
Another thing you can try (which I didn't as I'm lazy) is to simulate your situation by doing an empty lung static and then start walking after X time, as it is similar to the problematic part of your dive profile. Maybe you could delay contractions in that way.
Anyway, whatever you will do, come back to report, I'm curious as well.
