Been to Kevin already.   and he was touting Art Audio - his current flavour of the month.  But he was pushing the EL34 pentode or the 20watt, big £££ 4x300B SET.  No 10watt Diavolo in sight.  I guess there's good reason? Not good match?

I know he was really in BP at one stage but he's gone all quiet on them now - defected to US?