I go with can motors in a heartbeat. They're quieter, draw much less power, and the dual motored locomotives will easily outperform the single Pulmore motor in any contest that I can think of except perhaps generating Ozone. As far as replacing can motors, I do a LOT of locomotive repairs, I very rarely replace a can motor, they're way more reliable than some people suggest. Also, with can motors, that audio you paid extra for can actually be heard over the grown of the Pulmore motor.
The GP9 with the single motor running short hood forward will be an anemic puller. How do I know that? I've had a number of them over the years. I had a more unique single motored engine with a front end motor, and I took the bull by the horns to make it a decent runner.
Improving the Lionel Phantom Locomotive
Bottom line? Buy one with the dual can motors, you'll be a way happier man.
