I have a bumblebee annie and a Rio Grande Southrern annie, both with a bit of a lope. Do all annies have this peculiar gate. The bumblebee had a bit of flash left on the main drive gear which I removed and after about a year of running the lope has subsided to almost unnoticable. The RGS had a malformed piece in the valve gearing which I corrected but it lopes worst than the bumblebee did. The RGS is still what I would consider not broken in, but this is going to be hard to solve. I also have a piece of valve gearing that seems to be stuck on the bumblebee, its the highest part of the gearing, and is shaped like a teardrop on its side. The RGS with the same gearing moves and seems seperate from the shaft that runs under the boiler. The bmblbee seems to be fused to the same shaft. Maybe one is made different than the other, I dont know, can anyone help with this?