
To my delight the existing rotor was standard, so the advancer wasn't an instant waste of money.
It arrived by post at work today (thanks mate

Within 10-or-so minutes I had the rotor changed and blipped out the driveway for a play.
Throttle response is smoother and the bike doesn't "jump" or "stutter" as much at low speeds, slightly more noticable power in high revs as revealed by my "frontwheelometer".
I also discovered that even my ignition coil picker cover is magnesium and the alan bolt securing the ignition rotor is titanium. What a cool previous owner(s) my bike has had... well, apart from all the dings, race-marks and home-made H-frame... built for speed, ooo yeea.
Anyhoo, very very easy thing to do if anyone is considering it.
Wont promise improvements though as they are quiet subtle... but I imagine with a new dyno run and tune it'll emphasise the advancement a bit more.
A few photos here: http://www.jlid.com.au/pics/thumbnails.php?album=163