I mean...
Here I am soldering in the field with my fancy microprocessor-controlled portable soldering iron. I've been using it with 63/37 and doing SMD work, but in front of me now I've got a big wire on a 1/4" TS plug to work on that was put together with lead-free solder and I simply need a higher temperature in order for anything to melt.
I never expected an audio tech in the US to use lead-free solder for anything, ever, but here I am anyway.
So now, I've got choices.
Do I find a computer to plug my soldering iron into so I can reprogram it?
Do I use the $170 temperature control (more than twice the cost of the iron itself) that I left on the bench for safe keeping?
Or do I see this situation in advance, and buy seemingly any other temperature-controlled portable soldering iron instead?