It’s been used for such applications quite often Seano.
1 condition 3 positions.
Perfect stuff for the job I’d look at quality rutile wires dual shield of course.
Expensive mind but I guess you’ve already looked into that.
Different kettle of fish gasless wire.
If your gonna go that route I’d say use sticks personally
Some are better than others but on the whole they are not a pleasure to weld with.Out of interest Richard, what is so different about it ?.