The Wheel should freely "fall" to the bottom plate when you invert the movement. If it doesn't, one or both of the two pivot holes are either too tight or not parallel. You may wish to very slightly broach each hole aligning the broach to the other side of the plate while the plates are assembled. Being able to move the wheel side to side with finger pressure is not enough. Keep in mind that there needs to be some slop at each pivot to account for any slight deflection of the plates when the mainsprings are fully wound. That's too slow. What about when the mainspring is fully wound? Make sure you have adequate end-shake before you do anything else would be my advice. Are there any bushings in either plate? That might be a tale-tell sign as it was with the Governor. It sounds like the rest of the train works well though, right? Bruce Edit: I think it is going to be very tough to get an accurate tooth count from photos. Can you measure the distance between teeth on your warning wheel and compare it to the diameter as well as spacing of the new Governor's Trundles? My biggest question is how well does the Warning Wheel Gear and Governor Pinion mesh?