Seriously... You know i do manufacture more rally susspenion than any other place in North America, as far as we know, OK and over 60% is Subaru...so I'm not just some keyboard suspension ex-spurt... First thing is if the advice comes from auto-crossers you are safe to assume they know less than nothing and the advice is invariably wrong by major factors...Best thing is to never ever speak with them...its more pleasant when you don't have to wonder hopw people doing a simple little playing in a parking lot can so consistantly say the same stupid crap with such astounding confidence...
Second and most important: match stuff ---dampers matched to springs is always better than mid-matched stuff....
The valving inside the strut/shock/whatever is set to generate X fors--it is speed sensitive within a certain range but basically you can say its match to a certain spring..
Change the spring rate by say 100% stiffer, and the shock/strut/damper/whatever WILL BE underdamped,
Matched whatever is always better than severely underdamped.
Third: you have a variety of ways of dealing with springs and damping too soft---dodge things, slow down, weight/unweight before bumps---
There is nothing you can do with way too stiff springs/dampers.
Whatever else you learn you better learn about weight shift..forward weight shift and outward...that's how we go around corners--regardless of surface..
The springs --and dampers whicg control them---better be compliant enough to let you shift weight forwards and forwards and outside AT THE SPEED AND AGGRESSIVE LEVEL you're going to initially be.
Too stiff and you won't move weight forward under noobular levels of namby pamby braking...
You need to learn to do things BEFORE moving forward on bad advice... Especially when the advice ad choice is as bad as it obviously is..
NOT after these springs have Po-go-ed you onto the roof.