Today after washing and drying my car, I used OCW. After I was done, I noticed a spot that looked like bird bomb residue. I put a pinhead amount of Klasse AIO on a MF and removed the spot. When I wiped the AIO off, I noticed that the spot where the AIO was applied was much slicker feeling that the OCW as I ran my finger over the paint. What does this mean? Perhaps OCW does not add as much in the way of slickness like AIO does. I wonder how long OCW really lasts..... It doesn't take too much more effort to apply and wipe off AIO than using OCW. I might just go back to AIO/UPP for my paint. After weekly washes, I'll just QD with Quikshine.