I've found four different sources (albeit all being different versions/instructions), and it was the last one when I found out about the "recess". Even some of the info I found suddenly was inaccessible online! So I could not refer back to it. The original source I have for Stageas specifically is now back online WTF? Anyway, I went around to Dan's to look at Nigel's old 260 and sure enough, theres a recess. Might have to go the 33 master for now, just to get the job done ... but not too sure about how it will mate up with the 260 clutch pedal box. I just want to avoid buying extra parts, when I've already got the 260 parts there.