galodoido
Contributor
Are you moving to the Phoenix area? And planning to dive locally most weekends. Because almost all of our lakes are fed by silty Colorado River water and we have a lot of boat traffic so at all except for one visibility is often measured in single feet. For that reason I'd go with a MK17 or one of the Aqualung diaphragm models since they're sealed by design. Lake Pleasant is the one exception where visibility is sometimes in the 10's of feet but deeper it's still colder and dark/cloudy. LIghts are used for any sort of visibility during the daylight.
Nothing really gets super cold here though and many divers travel to SoCal to boat/shore dive. We're an hour flight from the LA Basin with dozens of dive operations going out to the Channel Islands. Also San Diego/La Jolla for the kelp/sea lions. Even in winter, I've dove an unsealed reg there with ho issues.
Also we dive in Mexico. Rocky Point is at the end of the Sea of Cortez so due to tidal exchange it can be a little sandy/murky. Cleaner water is down near Guaymas at San Carlos - one of the shops here and one in Tucson both keep large dive boats there. It's usually pretty clear except for the algae blooms in spring. And maybe gets into the mid-50's in winter - at the tail end of summer it's 80 degrees though - I've been diving there in October in a t-shirt. On that dive vis was close to 80'.
My point is probably most standard diaphragm regs can handle all the conditions here adequately. I own Atomics but b4 I bought them I also considered an Mk25/S600. Now one of the Legends would also be on that list - my two go to shops were not Aqualung dealers at the time I bought both sets of my regs so that's probably the reason I didn't then.
There's about 4 Scubapro dealers in town - one is a Platinum Reseller. And maybe 5-6 Aqualung dealers - including the shop where IMO the best reg. tech in town works. If you're moving to one of the smaller Az. cities like Yuma or Lake Havasu you might want to check on what the single shop there sells/services. Tucson has less shops but the couple I've seen have a pretty good brand selection.
Thanks for this very comprehensive advice man. I'm actually moving to Flagstaff. I know there is a shop there called Summit Divers. Not sure if you know them.