I have had the MDT Plymouth switcher for a while. Going forward, the gears will lock up once every revolution. Reverse works fine. From time to time, this prevents the engine from starting. Once it is running, it works fine though it will sometimes stall at low speed. I was never able to find the problem as none of the gears have broken teeth or any problems that are obviously visible. According to Bachmann's website, I can send it out for repair or replacement with the check for $15. Add $5 for shipping and I am out $20 for a switcher that usually sells for $25 (or less on Ebay). Is it worth saving this little switcher by sending it out for repair? Obviously it is not my only engine so it is rarely being used anyway.