Quote Originally Posted by XRunner View Post
The usual reaason for cutting down or folding numbers is to remove the superflous text and advertising that has become such a feature and often ignores the rule that it should not exceed 2.5cm in height. If the organisers break the rules regarding advertising on numbers then they should not penalise runners who do the same!

The actual number is generally left plainly visible.

If you are referring to Rule 18 Number Cards Para 2 of UKA Rules for Competition 1st April 2010, commercial sponsor lettering is allowed up to 5cm in height (ie double your assertion): but perhaps this simple fellrunner just does not understand numbering in your arcane world.