Built in the mid 70's this grey market does not have a synchronized transmission. Since purchasing, I have never tried to shift on the fly as I have no experience double clutching, etc. Also, have never used the tractor on other that a few of the slower (lower gears). Used to a car where you really can't start out in fifth gear. Have tried to read as much as possible but there seems to be some conflicting info. Regardless of the gear I think I need to use, must I always start from a standing stop and once moving if I want to change gears, must I always stop first. Anyone out there with a similar model that could advise me what you do?? Thanks.