Quite a few JS engines running around Aus now, and reports have been excellent re performance and reliability. Best results have been using OS P4, Axe RT5, or Nova C5TC plugs. (ie medium heat range)
The motor seems to be working well with a number of different exhausts, VP Pro3023, AE2035 and I have heard the Losi RE11 pipe works well too.
If anyone has any feedback or questions please post here.