I need an opinion from you N scalers. I disussed my recent aquisition in another thread that included 137 cars and 29 locos. I bought another layout a few weeks ago that also included cars and locos. I started to convert my own cars and locos over to MT couplers and have bought cars that mostly had them already on. Now my delima, only eight of the cars and none of the locos that I bought recently have them on. To convert them all would run me quite a bit, say around $3.50 a car and a bit more for each engine, not to even count the endless hours of fooling around with them. What would you do? Convert all to MT or run with both types? How many of you run with one type or the other, or both? Hey, a poll, I'll do a poll.