I pulled out my D&H Shark and had a good run.
It is pulling some wood passenger cars I got last year from a restaurant auction. They were on the wall for decorations, had wood trucks even! I put on the D&H lettering and some Great Trains trucks. Ran real good today. Ball bearing pickups are on each truck. So runs fine on track power-only other track power I have is the Zephyer and the MTH locomotives.