im having trouble with the lead trucks coming off the track sometimes  my engine has all wheel pickup and a knuckle coupler on the tender and i have an older engine i purchased in the 90,s when i bought the starter kit  and im having the same problem

by the way my name is vic   and thank you

i have double tracks and when im running two engines why does one goes slower than the other. im using a mrc tech 4 280 both engines are about a year old

thanks grumpygramps75

can you use the n-scale turntable with unitrack