OK, started to cloud over so I packed up.
Secondary collimation is easier. I just have to watch for rotation around the central screw. It held collimation as I moved the scope from horizon to zenith. I pulled out the E and F stars in the Trapezium no problem (lovely sky tonight!). I got down to the 5mm TMB/Burgess Planetary eyepiece - magnification 240 or so (still haven't worked out the focal length of this 8" reflector. I reckon collimation was easy to achieve, was quite good and held up well.
JMI focusser was nice and smooth. I just need to get the electric focusser connected since the scope wobbles on the EQ5 - too much for 240x!
Happy, Jan!
