5KE Seat height and rear spring suggestion?

[Eddy321]

I'll be trying my 5KE on the track for the first time very soon.
Manual says: Seat height adjustment standard lenght 27 mm.
Extent of adjustment 21-33mm...
What do you guys run?

I weigh 160-165 with riding gear, on a bumpy track would you go with a 425 lbs/in (7.6 kg/mm) or a 450 lbs/in (8.0 kg/mm)?

Any suggestions for front springs?

Thanks in advance
Eddy

[gangus]

set it all standard then measure your sags.
I have 19mm front and 0 & 25 on the rear
26 mm ride height on the rear