Some like Konis, I like Bilsteins. Unfortunately, Bilstein only makes off-the-shelf adjustables for the latest Golf IV (don't know if they retrofit to Golf II). For all non-adjustables (including the Rallye/Race models), a revalve is necessary for spring rates above about 400 lbs/inch (and most of us run over 600). This only costs about $55 per strut through Bilstein, but also requires shipping and a few weeks of downtime.