My PT has the BTG springs. I don't know about quality, maybe they are almost same as Eibach. But, BTG drops the front more than the back, so the slope is still there, but anyway I like that better than for it to be "flat". I think for scraping front and bottom and having 4 adults, main thing is to learn to drive into the driveways and around the bumps then it is not a big problem. At first I scraped a lot in front and hit the bottom, but now I got used to it so it doesn't happen too much except when I'm driving too fast!
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