Oldskool,
In reply to your post, and as you said no offence to the English Bull, but I'd say the English Bull from the 60s and 70s was a different animal to the ones of today, there was probably still working strains back then.
As I said in my post it was purely an observation and based on the particular strain that I was familar with. It wasn't meant as a generalisation. Any bull that was introudced would have beed done a long long time ago and would be very diluted.
I'm sure there are plenty of other guys on here who would know more and would be better qualified than me to com