Good the hear you are getting on with yours BR, I'm chomping at the bit to get mine to a range. Just have to wait to get insured on my mums car before I can be mobile again (sold mine recently as I was only driving every other week).
Did you find that 4.52s were a bit easy to feed into the bore btw? I thought they might be on mine when I was chronying the other day. Was considering if it might be worth picking up a tin of 4.53 before I go out with it?
TB, is the QB stub going to be a replicable product or is it just a one off...? And any news on that mod adaptor?