Hey all, I just purchased (14) DM & I ore Jennys. I would like to pull them with my Ac4400, but the coupler on the loco keeps pushing the front wheel of the first Jenny off the track on the curves. I've tried longer couplers on both, then on one and the other. I have 22" radius curves. All my other Loco's pull find, but work hard on the 3% grade. Now, I use a coal hopper between the Loco and Jennys and this works great, but looks wrong. Any suggestions.