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If your interested in the 30 you cant go wrong, for the price,
Andy, price is not the first factor when it comes to making a desicion about underwater equipment since your safety depends on it. I agree with you. But if its a product that is fair quality for a good price and gets the job done, then it worths a try..... What is really ipmortant though is how long will the wing last.
fishinfortuna, thanks for the info. Does this come from your personal experience or some friend of yours had a dive with one?
Personal experience with the entire IST product line.
No bashing Halcyon (I like their products) but the big H has had problems with their production as well: Halcyon Manufacturing Recall of SCUBA BC Inflators
So price does not always mean the product will not fail when you least expect it. But DevonDiver is right, a 30lbs wing is great for relatively shallow water diving. Great for hunting lobster in the rocks. Wreck diving with a single 120, I personally want something with more lift. Wreck penatrations with doubles, I want even more and double bladders, because as DD explained s%!t happens.
TUSA/Tabata has had problems as well:
Tabata USA Recalls Scuba Regulators Due to Drowning Hazard
I hope this has been helpful!