[Christ]

It's confusing to me, because in the sense that I'm familiar with, synchros, when "dead", will allow grinding in the gears, but won't stop you from getting to them eventually when the speeds match up.

I won't say anyone is wrong, because I don't have enough information to form anything other than a grossly uneducated opinion based on personal experience with only a mildly related subject... anything I say beyond what I've already (apparently incorrectly) added would only be conjecture, a joke at best.