vioch
Contributor
We used this system in our team without anything like this for about 4-5 years, then switched to seal-on-seal gloves just because they lack the main disadvantage of any ring systems - bulkness. Other than that, we had no demand for replacing this system with another.I I made many dives where the gloves completely popped off multiple times before I even entered the water.
Because there is nothing holding on the gloves except the friction from very small orIngs, it is very easy to have any movement of the glove cause it to disengage.
If the glove by itself popped off from its main black ring - you just used wrong stopper ring (there are several in the set with different diameters and color) or was not installed properly.
System by itself don't fall apart either as the rubber o-ring keeps it tight... strong tension should be applied to undo it, thus it has the ring on thread for pulling off. I guess separation may happen if the drysuit sleeves + gloves are too short for the hands to be fully straightened.
P.S. we used this system in the second half of the 2000s, may be Si-Tech modified it a bit, as sometimes we even had to ask buddies to help with ring rotation to separate the system as it was hard to do this with one hand.