Yeah, it isn't hack or anything like that, if you want to give it a go, pull the springs out cut a few coils off them and put them back in. The bad thing is you really are guessing how much it's going to go. Don't think if you cut 2" of the height of the spring it's going to drop 2". You change the spring rate when you cut them so it's a bit of a guess. You could also go the heating route. Put some blocks under the car at a little higher than the height you want and heat the springs with a torch until it sags down to the blocks then let it cool a good long time. Now this is a bit hack, but it's been done for years. Cutting them of course is way better, just don't go too far because then geometry gets all goofed up. But just a little lowering, a tasteful lowering, it isn't that big of a deal.