I'm sorry, i know that this is not the right place to ask this question, but in the equipment part no one answer my question and I hope that maybe someone here could solve my problem. I going to buy a wing for a Twin, and I don't know which one...I thinking about Halcyon Explorer 40 lbs or Dir Zone Stream 20 L which is a copy of the old Halcyon Explorer. The only difference is that the Dir Zone Wing is made of a better Cordura (in my opinon). But on the other hand most DIR divers choose Halcyon Explorer. I would use this wing generally on the wreck divings. Thanks for help.