Hey mr. robot,

what is said name of the elusive shop near the rock wall, is it rockwall cycling?

And no, the threads weren't crossed. The tool threaded in smoothly; it was the action of the puller pushing against the spindle that caused the crank arm to barf it's extraction threads. Basically, the puller walked out and the threads sprung off it in a bunch of coiled metal.

This isn't my first time using a crank arm puller on a ST crankset, I pulled the washer before I put in the puller.

John, thanks for the tool advice; I'll see if my LBS carries any of that.