This is just a very spurious argument to try and support the contention that the BG club should recognise solo rounds.
The BG is a running challenge, not a climbing challenge.
Cullins I think are fundamentally different and are a combination.
Simon, I'm amused by the way you have translated Bob's reply that actually no-body knows definitively whether Bob Graham did Broad Stand top roaped or not into - "he did it solo".
If we assume he did solo it then in 1938 you can bet he solo-ed good rock, not the polished rock we have now.
BS is not difficult, but it is dangerously exposed should you slip - and slipping is more likely these days due to the polished rock.
Top roping BS is about protection.