Whataya mean if I'm really a trucker guy knitting? You have doubts?
The scarf is for my mother, who is pretty short, so I think 40" will probably be about right. I'll be able to tell for sure once it reaches that length. If it seems too short I'll just keep knitting LOL
But I don't think that I will give her this one as it's not very good work. Perhaps the next one will turn out better.
I'd really hate to post a picture of the work in progress (what does "fo" stand for anyway?), as it really is a pretty terrible example of knitting.