Similar experiences- dinghy drill in N sea off Grimsby in Jan/Feb, no immersion gloves, lost the use of my hands/fingers before I could reel in my PSP/dinghy- well under 2 minutes. In mild panic managed to pull toggle to inflate dinghy using my wrists pushed together. Can't remember if I regained use of my fingers before endex and we were fished out of the drink. After that I always flew wearing immersion gloves.
10 man dinghy drill in similar time frame was the most miserable and cold I think I've ever been.
Before the Victor/Bucc accident I wore: t shirt, issue gn turtleneck, long john bottoms, 2
pr sox, bunny suit, goon suit. After that accident we all seemed to wear more warm stuff.