Remember you get what you paid for. In this case, your not paying for anything, so in the end, you probably won't really be getting anything...........maybe a headache.
I got a solution!
Just go get some coilovers! I did, and damn did it ever make a difference. Feels good to be able to change the ride height and stiffness in a matter of minutes.
Refering back to what I said, whether you do it the right way or the cheap way, it is practical, because you are getting improvements out of what you are doing. The difference is how significant they are, reliability, and lifespan too.