I'm in the process of converting to long hose and bungeed octo. My question is regarding marking and color. Dumb I know but the reason I ask is that we have two 7 ft hoses in stock. I have all the other hoses and parts to reconfigure my regs. The hoses we have are yellow. If I have to order a black one it could take a few days and delay my getting things set up for this weekend. Also since we just got an order in this would be a one shot order. This translates into the hose plus shipping which would not be much but seeing as we have stock on hand and I've been taught that in recreational diving the octo is conspicuously marked and I'll be working with newbies in this rig would the yellow hose be ok? Normally I'd be willing to wait and even pay extra for gear but since I started this I've dropped better than 2 grand in the last month or so. Also the price on the hose has gone up for a new one and since it looks like they will not be used unless I take one(very few long hose configuration around here) the owner is willing to make me a very good deal on one.