Free water for your RO/DI!!
Heh, sucks being honest somedays..
I wonder how hard it would be to swap them. Might be worth looking into, go to Home Depot and rent some crimpers ... hard call.
I found the only thing that mattered what I had the reg set at were the showers. I first tried opening up the reg all the way, and then suddenly showers hurt! So I dialed it back down. I wish I had put my outside lines before the reg because I've found I can't run two of those impulse type sprinklers simultaneously like I could at my old house (not enough pressure to run the bish-bish-bish part .. just sorta sit there with a pathetic little stream not turning or anything)..
.. Anyhow other than the showers I'm not sure what really benefits from having the pressure dialed down.