In reply to Lord_ash2000:
> Looked pretty nails at the time and seem to recall a lot of the difficulties being finger size dependent
Traversi did an Enormocast interview while he was working on it, and said he thinks it's not as hand-size-dependent as people imagine; the crack's so thin that much of the time no-one's fingers are going to fit inside it anyway and it's much more about using the edges for weird tenuous side-pulls.