Hi guys, I purchased a brand new Halcyon Infinity BP/W system and then purchased a weighted STA system on ebay. According to some dive sale websites they sell the Weighted STA system with or without the straps. My question is do I need to buy the separate straps or does my Halcyon Infinity already have them to use with the weighted STA system? your help would be greatly appreciated in this matter. Thanks, Vlad