Right I see your thinking now, I think, they will be fine, I had a identical set up on my e46, basically it was crazy low with them down, and I had no travel in the shock as I had removed the bumps stops to allow it to go as low as possible, then when I raised it 2" it was actually quite comfortable. It doues not effect the spring, the spring won't move or compress more when lifted, it basically lifts the top mount higher if that makes any sense. Just remember when you do the tracking do it at what ever hight you will drive them at, as when I let all the air out of mine it would tow in and camber in a lot, not that I could drive it when it was down, as the subframe would drag. Ha.