I'm working on setting up air bumps on the front of my mostly stock 97 4 runner. The 4 runner has a whoping 9" of front wheel travel and I have some 2.0 2" travel bilstein bumps. The best spot the bumps will fit travels 4.5" or 2.25" from ride height to full bump and would start engaging the bump 1" over ride height or though almost 40% of my wheel travel. What percentage of your travel should the bumps be engaged? I'm thinking I need to figure out how to limit the travel of my bumps.