OK .
I just went out and checked my bottle . It says Mapp Gas . But below , in small print , it says something about 'stabilized' . There was nothing like Mapp/Pro on the label .
Just read the Wiki (
https://en.wikipedia.org/wiki/MAPP_gas ) .
Original , un-stabilized , MAP gas was MAPD .
And , true , there is a temperature difference .
So , what I have is the stabilized version .
Which ever , I definitely prefer it over propane .
Like I said , I'll have to try it with O2 sometime .
Pete .