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Ive been lookin in the suspension drop thread, and all around for that matter. And i kinda thought about this after I considered buying the megan racing springs.
Throughout the thread, the only suspension that has a real reputation for sagging is the S-Techs. If you look at stechs, they have a loosely wound coil on them. all the other springs that have tight coils - like h&r(1.3in), progress (2.0), goldlines (2.0) etc dont sag. These tightly wound coils also have "dead coils" in them, which some people apparently dont want.
Note: most of these are progressive rate springs

So what is the correlation between spring tightness and sag and ride quality? id think the less coils means the stiffer each coil needs to be, therefore more bouncy when they recoil, and a tightly wound coil has enough coils to dissipate and reverberations.

or could it be the reverse, where since the shorter coil is at full compression, it transmits harshness to the cabin, where as the long spring will just recoil and bounce?

Also, if my audio equipment dropped my stock rear suspension by .5", will it also drop my new springs by .5" over their drop rate? or will that change?

and the megan springs themselves have a spring rate of 280 front and 230 rear. what is stock? would this sag a lot? i kinda want front sag lol so i can get it close to neuspeed drop without spending $200 shipped online. which i think is too much for springs.