They misquote the guidelines as "Planners should note that course lengths refer to course lengths which are “corrected” for height climb (by adding 0.1 km for every 10m of climb)." and suggest therefore the "Min max length (km)" column in the table of courses should refer to course length + height climb...and that therefore a recent Short Brown 9.4km course with 270m climb = 12.1 and should've been labelled as a black course ....
In fact the guidelines say "(a) The Black course (has) an expected elite winning time of 67 minutes. All other course lengths should be scaled to the length required for this course, which has been allocated a course length ratio of 1.00.
Where no Black course is planned, it is still necessary to determine the length of a nominal Black course with an elite winning time of 67 minutes in order to use the ratios for the other courses. In this instance the winning time on the Brown
course by a top standard elite competitor should be 57 minutes. [because the Brown course length ratio is 0.85. Short Brown course ratio is 0.69 therefore by extension top elite winning time should be 46-47 mins]
(b) Planners should note that course length ratios refer to course lengths which are “corrected” for height climb (by adding 0.1 km for every 10m of climb)."
So it's elite winning time that matters, everything is calculated via course ratios which use course lengths corrected for height climb, and the "min max course lengths (km)" in the table courses are meant to be just that. Indeed had they read a bit further, they would have found: "(d) The lengths shown are intended as a guide. For easy areas the course lengths will be towards the top end of the range. For difficult or more physical areas the course lengths will be towards the bottom end of the range."
As it happens the course in question was won by Sarah Rollins in 59 mins, with Colin Dickson a minute behind...so arguably the course was a wee bit long - who'd bet against Scotia or GG going round in sub-50? - but not long enough for Brown and certainly nowhere near Black... The perception of it being much too long arises because lots of other planners persistently make their courses way too short - spin through the results on the BOF site and it's easy to find Short Brown courses being won by vets in well under 50 mins.
This is Orienteering's version of "vanity sizing" - instead of size 12 getting bigger, short brown is getting shorter... and maybe it doesn't matter all that much if it's what the punters want - personally i'm a fan of short courses precisely because 6k is usually more fun than 10k (and 3.1k at lossie this morning was even better
