Thanks for getting back so quickly!

yeah I measured pad positions initially as per your video, I guess a picture worth a thousand words here,
Bottom bracket:



Pad:



The wall is straight, and the ruler is horizontal, stem is original - V21 80mm, frame is M (reach 410 stack 535), not sure if the site info it correct after all, as they list the same ranges 416-915 for both CF8 and CF7 regardless of the differences in cockpits.

Cheers!