Spring Rates (and yes I have used the search function)

[Super86]

OK, so have used the search function and done a bit of reading and would be interested in some opinions for my particular setup (or setup to be).

*Trueno Hatch (if it makes a difference)
*Caged, through to front strut towers
*Very light - all sound deadening (inc. underneath) and excess brackets, seats carpet trim etc removed
*To be used for some road (in the weekends), with some hillclimb, track day etc.

The rates I was looking at are as follows:

BC Suspension
http://forums.club4ag.com/zerothread?id=65063

Front: 6kg
Rear: 4.5kg

I am interested in knowing what your thoughts are in relation to my use and setup vs the spring rates listed.

Cheers