Any product including an engine should not be returned without authorization. Warranty service on the engines is handled by Mark and if there is an issue with the engine Mark will fix it. Returning the engine to John at OMP will result in it being sent either back to you or to the service of Mark. I find it very interesting that RC3dr is importing his own engine line. I know my integrity prevents me from buying and then badmouthing another competitor publicily. Guess not all feel that way though.
