I have this 7 string Kiesel. It's rock solid build-wise, keeps excellent tune, and has great ergonomics. Unfortunately, it's still flubby sounding as hell even after swapping out the stock pups for some BKPs with a reduced bass response. I kept trying different amp settings, different IRs, but I just couldn't get it to sound good to me. Eventually, I just said, "F this, I'm done", and decided to just sell it. Turns out I was being a bit hasty. Going through my box of pedals the other day I came across an old Boss Power Stack distortion, and figured why not? I plugged it in, and instant sonic satisfaction. Only thing is I got to use a noise gate with it, but otherwise it doesn't sound half bad. Go figure, right? I owe you one Boss.