I'm among the group of AGFers that recently purchased a SX Callisto from the current crop on the Rondo website. There's been quite a few threads and posts about these guitars, and along the way someone mentioned that the 24.75 scale notches in their guitar neck straight edge did not line up with the frets. I sort of ignored this until now, since I thought that would be really odd. Tonight I had my Callisto on the bench, setting up for a fret level, and when I placed my 24.75" scale notched straight edge on the neck, I saw that the neck is definitely not the standard Gibson 24.75" scale. I have the bridge off the guitar, but measuring nut to twelfth fret, I get 12.25", and twelfth fret to centerline of bridge posts measures 12.25". In other words, I'm really surprised to find that this guitar is 24.5" scale. ???? Now, the guitar plays in tune just fine, and I like the feel of it, but I find the oddball scale to be peculiar to this guitar. Somebody at the factory in China worked hard to calculate the required fret spacing rather than just copying the Gibson spacing like they have been doing in China for decades now. I went back and looked at the specs on the Rondo website and they indicate 25.75" scale. So, can any of you other Callisto owners or owners of other "gibson" style guitars sold on the Rondo website confirm that your examples are also 25.5" scale?