I'm having trouble getting a decent set of wipers for my hundy. The last set was ok but clunked loudly when they would switch from moving upward to downward. Got really tired of it and replaced them with Michelin wipers from Costco. Had high hopes for these as they've been good on other vehicles but driving over 40 mph causes them to allow water underneath the driver's side. I'm wondering if the solid piece across is catching too much air and the spring isn't strong enough to compensate at higher speeds. The springs seem plenty strong but do they wear out? Should I try some OEM blades? Where's the best place to get them?