[QUOTE=Diverdaniel;4219]we have 3 DUI Trilaminate diagonal self donning ones, TSL series, no problems with zippers, just get hard after a while, we have got problems with the seals though, started to go after about 6 months with good care, too. ?!
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What type of seals do you have? Neoprene or latex? The next question I have, provided that you have latex, is how and where do you you store your suits? With latex seals, one must be careful not to store them near ozone gas generating devices or in well lit areas. Any electric motors ie. fridges, freezers, washer, dryers, etc. will generate ozone gas and destroy the seals quickly!! (I learned this the hard way) If stored in a garage, fluorescent lights can be detrimental. Do you leave them hanging up? It is best to dry them, then store them in a dark bag, in a dark area, in a relatively cool area.

As for the self-donning front zipper, never had a problem. I do however, keep the zipper lubricated with wax. I never was co-ordinated enough to manage the rear entry suits.

The zip seals, allowing for quick changing of wrist and neck seals, have their attractions and detractions. I have dive buddies that have both (I don't), and I have yet to see the negatives as described by others. The attraction of being able to whip on a new seal in minutes, saving a dive, has a strong attraction.