I am in the process of gathering all my documents required for the Tier 1 Exceptional Talent visa endorsement. The guideline given was a maximum of 10 evidence as the supporting documents. While doing my research, I saw some other successful applicants in the Tech Nation saying that one document means that not more than 2 pages of A4 paper (front & back).
My question is - does that rule only apply to Tech Nation applicant or to everyone? Or if there are guidelines in gov.uk or Arts Council UK regarding this that I am missing out?
Thank you so much. Any help will be very much appreciated.

Rikki