I never took my R56 S round knockhill but even on normal roads they were a let down at times. Don't get me wrong they are good brakes and work well driving about like yer dad, and lets be honest most of us don't drive round knockhill every weekend, however in saying that if you want to go out and hit a quiet back road and are quite aggressive on the the brakes they were dissapointing.
As you say Ian the brembo's are in another league. In fact it was one of the first things Del noticed when he drove mine at the weekend, just after going round that tight bend on 2 wheels