After more months than I'd planned, I finally added some extra weight to my ps 3.0 Aerotrain today - 20 ounces total. Unfortunately, until I lay some track I won't know how much pulling power that extra weight gives it.
Also, John, will you please elaborate on exactly what you've done to "tune" the rear truck design so it tracks properly? Your wisdom and expertise are always very helpful and much appreciated. 
Thanks
Btw, I read a couple people posted that the tach strip was on their engine's front motor but mine is on the rear. So, John, as an MTH tech, are you aware whether or not among the Aerotrain's Proto versions, has MTH ever changed which motor - front or rear - that the tach strip was on?
