not looking to offend, but non of them look particularly great. were did you find samples from? are they intended for automotive use? i use to have some that looked almost identical to oem stip's, that i used at dealership i worked at. i can see were they got it from but with out having rails myself to compare to will be hard to know for sure how well they will fit. i know it came in 4ft lengths though. also the rubber stips u do have do you know what they are inteded for. i only ask because in picture they look a little poris compared to the oem rubber as if they are for sealing a door jam or somthing so they will compress a little. if that is the case u may find they shrink over time as rubber hardens, they also just seem to hook in on one side so apart from the #3 sample i would be worried about leading edge cathing the wind and either pulling it our over time or causeing a wind whistle.... (have had wind whistle on oem room rails when rubber was not intalled just right on mdx"s very anoying).

sorry if i sounds negative, not my intension, just thinking out loud. great work though and pictures really helped