That'll be the plan (a rag and some muscle) for the final torque of the cog. I picked up the rear axle spacers this past weekend. My project for the next week will be to re-dish the wheel.

To satisfy some curiosity, I tried the track cog on a multi-speed hub from '70's (Maillard) wondering if there'd be more threads on an older hub. Nope. There is still only, at most, two exposed threads. Maybe an old, pre-2005 Surly cog or a cheap cog that's cheap because it has less threading/ material would do, but I'm going to stick with what I got for now.