option). We drove on I45 (some good road and one stretch of less than optimal road) and did not detect any problems. I believe either way you go the ride will be similar. Being older folks we wanted the option of lowering the height for parking and unloading/loading. We drove the same stretch of 45 with our 2002 and did not detect a different ride but we are talking about a three months between drives. If you or a wife/friend is less than average height and will be loading cargo, etc. get the adjustable, if not don't blow the $500.00 (if purchasing a 4.4i) on ARH. Offering advice over the Internet, not knowing the folks at the other end, is an inexact science. James