Just a quick question for the experts out there. I just installed a brand new (old stock) LTI era e-unit into my nephew's Lionel 2055 baby hudson. It cycles perfectly with the exception of one quirk. It misses reverse every other time it cycles (F-N-R-N-F-N-N-F-N-R for example). This is why I replaced the old e-unit for him in the first place...it was doing the very same thing. Could the LTI e-unit be defective...bad drum? Any ideas or replies? Thank you.