Anyone have a shift finger for Jerico?

[Bobby Fazio]

My only concern before ordering a bunch of these is the measurement of the flat area where the shift lever straddles the finger on the outside of the case. I have seen measurements of this area anywhere from .315-.326 on the five fingers I measured today. I would like to settle on a number with a little help from my fellow stick racers. I think I would rather have that be too big than too small and have play in the lever.