I know from my zip that I need to grease the docking end EVERY dive. Do I forget it, then it leaks. But sometimes I do it and it it still leaks.
With my suit it is not a little bit leaking, when it start leeking, the suit totally floods.
I have had this directly at the beginning of dives. When I went up and then down again during a shallow recreational dive (first part of dive dry, then when going under again, then flooded), at a 60m depth.
I don't have heating under my suit because I don't trust that. I dive in cold waters, sometimes under ice. So a leak is a big problem.
I don't like to have a lot of air in the suit, but I had never problems with the steel zip, I just put air in it as much as needed not to squeeze. My other suit (that leaks too now, but that is a glue-problem on stitches, will be repaired, warranty) has a steel zip and never problems). I have done dives to over 330ft, so it is not that I don't know how to dive a drysuit.
