This thread got me to finally start converting. Having come from HO I can't stand the having to (maybe) couple at warp speed. So far, as some said here, the Weaver cars are by far the easiest. The Atlas I'm finding vary all over. I've got one, maybe more, that has a pair of holes way off to the side of the Kadee box. Nothing a drill won't solve. Working my way up to the Lionel and MTH which look far more complex. So far the only real problem has been the batch of volume discount #805 couplers I got that don't have any springs on the knuckles and maybe one spare in the package. NOT happy about that at all. Checked all the local shops to no avail and ordered springs from TrainZ today.