A horrible climb. Only to be attempted in old clothes which will be shreded by the determined use of bridging required. Your back is likely to be your most useful appendage in ascending this.
The crack exudes a greenish-black slime of mud and alge augmented with loose boulders.
Would become straightforward when filled with snow (best thing for it!) in the winter - but this would requie a very substantial amount of snow and it's likely to be enormously more difficult in lean conditions when large chokestones and overhangs would make climbing the gully impossible and force an ascent of the gully walls. RobScotland - AltLd O/S - 08/Sep/07 with Charlie Hill