Hi Dave,
I think my Pacifica might be the same model, its not with me right now. But... I do agree the neck is narrow. Compared to my Seagull S6 (acoustic) it is night and day.
I do think though that over time the little Yammie will be ok.
Good luck!
PS, this might help you keep believing in the Yamaha And you are right, setup won't do much. It's going to come down to positioning
https://www.youtube.com/watch?v=YuXXCnJK2gg
This year the diet is definitely gonna stick!