Great tip about warming them up in water prior to stretching them in place.
No, the slits are not by the o-ring type lip. The lip is not what forms the seal, it just reinforces / locks the actual o-ring in place that does keep the glove on and sealed to the glove ring.
The difference it makes is that the cover rings are compromised and will most likely get worse with time and use, and will probably tear through the next time they are removed from the glove/glove ring if they don't fail before that.
The application of a couple layers of electrical tape should protect them, and when the cover rings do fail the tape will protect the gloves as well.
I need to order some 1.5inch electrical tape for that eventuality.
-Z
I worded myself poorly I suppose
Obviously the seal is between the glove/ring, but the lip of the protective ring should help close the only place where water can seep in, which is the groove between the ring/glove, no?
If the protective ring actually does any difference at all I have no idea, but placebo or not I'd like to think it helps a little bit
How long have you had your rings, how many dives? If the protective rings start to go bad after a while I better get my head out of my arse and contact WP about purchasing some replacements.
Could the slits have formed due to swapping gloves often, which means stretching the protective rings often to get them on off and in doing so wearing them out a bit?
As I broke one of mine without using too much force I figured they're not very stretchy (and/or durable) and pulling them on/off often would probably wear them out fast perhaps?
I'm tossing an email to WP after posting this, if I don't hear from them in a day or so I'll toss the dive shop where I bought my WP drysuit a call, they're located a stones throw from WP and should have an answer.
Hopefully they can sort out spares, one possible explanation for the Norweigan shop and a few others having spares could be that they buy the whole Ultima system and split it up and sell the parts separately though.
I'll get back here when I've heard from them, I'm hoping because I'm in Sweden (same as WP) it can be sorted and if so I can probably help you get some spares with waaay cheaper shipping than that Norweigan shop, but you never know.