good question, sorry for not providing this information. I do predominantly warm water, Caribbean type diving. I also do some Florida Spring diving where the water is 68F. I do not do any cave diving, wreck penetration diving or tech deep diving. I am taking a cavern class in April which will be taught in the Florida Springs but the purpose of the class is to hone my skills and learn additional safety diving procedures. I "may" so some cavern diving after that but that will probably be secondary to my normal open water Caribbean diving.
I likely will not service the regs myself. And yes, most of my diving is done in foreign countries.
Happy New Year Everyone. Dive Safe.
OK, now we are getting somewhere.
For the type of diving you anticipate:
1. Everyday recreational
2.Warm water
3.Foreign Travel
Here are my recommendations and why:
You want a regulator brand that has a good track record for keeping parts available for each model for a long time.
Of course unless you intend to DIY (you have stated this is not the case) you also want a regulator that can be serviced by your local dive shop and lots of locations in the world. The two best companies in both regards are Aqualung and ScubaPro. AL is not on your list.
My recommendation for the average recreational diver, i.e. not freezing water, 150 feet or less, is a simple non balanced piston 1st stage such as the Scuba Pro MK 2 , there are other manufacturers with similar designs. This simple design is usually inexpensive see
http://www.scubatoys.com/store/detail.asp?product_id=MK2-1st, is nearly bullet proof, easy to get parts for and serviced easily as well as easy to DYI because it requires only a few o-rings and a seat. Yes, the unbalanced design will increase the breathing effort at low tank pressure, but I view this as a good thing especially for new or inexperienced divers. Here is a good thread
http://www.scubaboard.com/forums/regulators/87374-scuba-pro-r190-2.html Additionally, if/when one wants to start more advanced diving where high concentrations of oxygen will be used this type regulator can be moved to that application.
For a second stage I like an adjustable and balanced unit. This provides the ability to have the regulator tuned to minimum inhalation resistance with the option of the diver increasing the resistance it if he/she finds the need to. An old Balanced Adjustable if my personal favorite, but if you are looking for a new regulator the G250v is the way to go.
It is a good idea to have the same manufactures 1st and 2nd stage to make getting service less complicated, additionally, you already have one SP set up and probably know where to get service.
One last thing...............Geaux Tigers!!!!..........