I think you are digging to deep on this thing. The bottom line is, if you go to your LDS and ask which equipment would be best for you and they point you in the direction of a particular piece or pieces of gear, you should say, "great, let me rent or try out some." If the LDS says they don't rent the gear they want you to buy, then go find another LDS.yknot:Sure sounds like good advice but this always falls short in reality. Part of test driving a car is to try features that you are actually qualified to assess. Pieces of dive equipment, like regulators, are tested and rated by the manufacturers on special equipment because it is very hard to quantify otherwise. With all of the vast experience you had with renting, how many different regs did you try? Was there a specific reg that didn't do what it was supposed to do, which is to deliver a breathing gas, on demand, in a quantity sufficient for the current enviroment's requirement? If any specific reg seemed substandard, do you know if it was poorly adjusted or maintained or just a bad design? Did you breath any two regs side by side at a specific depth? Under heavy stress? At 150'? In my area, you won't find top end gear for rent anywhere so that advice to move along is BS. The bottom line is that even Dacor regs, which this board seems to dislike, will do just fine, service issues aside, if no one tells you differently. They would have been sued out of existance if this wasn't true. Just to test your rent first beliefs: As an example, the new Poseidon Xstream Deep regs are highly regarded, at least by this board and the product reviews I've seen. Have you ever actually seen one for sale in a LDS? How about for rent? Would you be willing to test this, as a rental reg, to it's limits, in order to assess it's capabilities?
You can have the best made and most expensive gear in the world, but, if it is not comfortable, you're likely not going to use it long and then be stuck with it because the LDS won't take it back once it's been wet.