I hear a lot of chat about this "STI 7", that "STI 8" and even the odd "STI 9"...
Whazzit all mean? How does this numbering scheme relate to Classics, Bugeyes, Blobeyes, Hawkeyes, Hatches and the like?
And what happened to STIs 1-6? Don't seem to hear much about them...
Yours as ever,
Confused from Central.