In reply to Maggot:
> How do you tick mark a chalk route? 😂
Can't remember which Crags magazine it was, but a quite early one from the mid-70s when chalk was still being argued about (Ken Wilson's "John Allen frees Great Wall but uses chalk", etc) - they did a brilliant spoof article about having discovered that when Alistair Crowley did an ascent of Etherelda's Pinnacle on Beachy Head in the 1890's (?), he'd committed the ultimate ethical indiscretion by using powdered gritstone on chalk 😁
IIRC there was a picture of Gabe Regan absolutely covered in chalk that accompanied this.