I have been looking around quite some time before I bought the Vogtland spings combined with the Konis. In the beginning I wanted to buy D2 or the Ksport but after several companies here in Sweden stopped selling them and after reading negative reviews I wanted to go with the Bilstein. As mentioned earlier in the thread only B16 was adjustable but the price for the B16 is a bit to high for me. But I think that is the way to go. Maybe in the future I will have a pair of B16 all over