The discussion on the MT heavyweights with their body mounted couplers got me to thinking about those things in this hobby that irritate you or bug you the most. The list could be very long I'm sure so let's keep it to those that come immediately to mind. Mine are as follows: Copper colored coupler trip pins. An easy fix, a little black paint will go a long way here. Coupling distance between cars. Short shank MT's are the way to go. Tight radius curves and #4 switches. Bigger is better both visually and operationally.