Hi all, sorry for delay I'm on kids tea duty being Mothers day. I did pretty well apart from the veg apparently..
So this was first fixed ages ago and I'm not experienced in testing (can u tell haha).
I've got some figs for you,
r1 0.21
rn 0.21
r2 0.33 so all looking ok
R1-R2 0.22 at...