Call me crazy, but I like to run trains. For hours at a time. Frequently. But I don't remember my old Lionels doing this. Is there something wrong with my setup that's causing this? Do I need to clean my track more frequently? Is there something wrong with my old ZW that's causing excessive arcing? I haven't noticed any sparking, but I am seeing this same wear on all my locomotive rollers (at least on the "new" Chinese Lionel stuff.)
Suggestions?