If you can outshoot a 150 6.3 Fuji, you be a better photographer than me. I have had mine since 1985.
Of course I don't blow mine up to 30 by 40 but I see nothing in my 16x20s that would indicate any lack of sharpness other than personal mistakes, I mean artistic decisions, I might have made.
Save the money. Buy more film.
tim in san jose