I just read the results of a search on switch problems. The problems were gauge adjustments, speed, and rail heights in the switch. My problem of derailing seems to be from the frog on a right hand switch swinging too far to the right and my diesel ridding up on it and derailing when coming into the switch from the right. If I were to bend what I would call the tail of the frog so that it contacted the outside rail sooner the "head" of the frog would not move past the rail it is to be aligned with, and life would be good. But I'm afraid the frog tail will break and then I'll have a broken frog. If anyone understands what I just wrote and has a better idea I'd appreciate it.