Cool Peter, give it a shot and see
I am an Ex-owner of several GSO scopes now and each one was of very high quality but as i suspect there might be the odd one that slips though its QA net...
After giving it some more thought - I could get the cheaper 12" GSO dob and have the mirror re-coated (possibly re-figured also?) and still come under the skywatcher price
decisions, decisions.