In reply to Flinticus:
Some guidebooks (e.g. Andrew Dempster's "Classic Mountain Scrambles in Scotland") have used 4 and 5 where 4 = Mod and 5 = Diff. The current SMC scrambling guides use the climbing grades. Walkhighlands grades walks from 1 to 5, where 5 usually includes some scrambling - a possible source of confusion?
Post edited at 18:15
