Bugger, I did forget to add #optimized, sorry for that! And I'm afraid that I don't understand what you mean with the detuning thing. Besides that I don't hear any samples being out of tune, I don't see any changes in your updated version of the port (other than the added #optimized). Could you elaborate?
You forgot to add a smw sample group so I added in #optimized. I also noticed your samples are a detuned on the flat side (particularly the bass one of us noted but for me more so was the key samples). Rounding them up to the next absolute value (ex A0) seemed to fix this.