Long hose works great for recreational diving too. Particularly the 5’ hose for open water, more streamlined (which the OP is after) than the 40” under arm in my opinion and gives better gas sharing options. The suggestion that the 40” can be used later for a pony bottle is a great idea for recreational diving below 80’, no? Perhaps mentioning the possibility of a deco/stage bottle got your back up? Maybe that was a bit “aggressive” of me to suggest, my apologies, I didn’t pay attention to the fact that it was a “basic” forum and the OP never mentioned an interest in going down that path. All my recreational diving was done using a BP/W (and incidentally a 7’ hose) long before I got into tech, so I appreciate that BP/Ws are an excellent choice even if one never plans to go into tech diving. I also appreciate that the 40” primary “works great” for many, but I find it too short for comfortable/optimal gas sharing. Just my opinion, you’re welcome to disagree.