Figuring that I only needed to be able to test various can motors against each other and didn't need to worry about actual torque figures so long as I knew which motors were stronger -and by how much- I built a small torque arm that can be easily moved from one motor to the other.
You can attach or remove the torque arm instantly via the little-bitty Allen screw, and it will fit over anything up to a 2mm shaft, which means it fits onto just about any can motor.
The old Cannon can motor that I pulled out of a Hallmark Santa Fe
2-10-0 wouldn't even put out enough torque to register on the scale, while the new Mashima can motor showed a reading of 1.78 Oz.!The loco -that had previously strained to pull five cars up our 2.2% grades- now pulls 10-12 cars up the same hill without pause, and where it would have previously stalled out it now simply spins the drivers when it runs out of traction.
If I add a little Bulfrog Snot to the rear set of drivers it will no doubt pull a few more.
I love it when a plan comes together!