AC-DC - I would be interested if you could pass on the details.
Ultranomad - Thanks for your reply. I had read the same about you with regard to angle of bank, but I find that if I use the Heading mode, and turn the bug to something like 180 degrees, it rolls out onto something nearer than 30 degrees, rather than 20. Thats OK in VMC but in IMC, even on autopilot, 30 degrees could be a bit dangerous. If I am in IMC, I generally do most significant heading changes by hand flying.
PiperArcher.