Campana,
I know what it's like to be far away from the caves. It's not fun, but you make the most of it. I ran into the same situation as you, no buddies that were DIR. I decided that I would organize a DIR Fundamentals class up here, and that went rather well, other than the weather being horrible.
I have a couple buddies that are great divers, but stuck in their ways. I still dive with them, because I trust them, and they trust me. They have made changes to gear, like swiitched to breathing long hose, stages on one side ect. Some of the other things need work though. The two things I'm most concerned with are, if they could get me air when I need it. We agree on the same deco gasses, and how we will do the deco. They still use the computer, but I follow my own schedule. If they have time remaining, I stay with them. If I have time remaining they stay with me. We have discussed safety issues. and they are on board. For the dives we're doing up here that seems to work out well.
I would have to think twice about any serious dives with them, since they don't agree 100% on everything.
Later
-Bob