custom spring ratings

[PhillRC]

anyone recommend any spring ratings for track/road driving.
it comes with 5kg/mm front and 7 kg/mm, but can have anything in reason they say.

[scottish_turbo]

There are a few comparisons on this link http://www.mr2spyder.net/spyderweb/index.php?/topic/2167-suspension-evaluationinformation/

There is another thread like this somewhere but Im unsure where it is.

If you want to search, I usually use http://spydersearch.org/. You then get results from three sites.