dpthdiver:I've accidently used my Titanium reg with 50% and yes there was a chemical reaction, yes my reg heated up and melted the O rings, but it didn't burst into flame nor did not explode like a mini A bomb on my back.
If you had your regulator serviced and it was usable, sounds like it had nothing to do with the Titanium and everything to do with contaminants inside the regulator.
If the Titanium had ignited, then you would've had to throw away the regulator.
So the same thing would have happened with a brass regulator if it had the same contaminants inside, right?
I agree with you that Titanium regulators do have their advantages.
If I had lots of money to spend, I wouldn't hesitate to get one for my single tank non-tech rig.