I am also trying out a few things on the rails just to see if there is much difference. Or just another nudge chance before a side drain.
One is hard to see. I only had black post rubbers to cut one up. So it would be to just cut and place a post rubber over the larger of the out rail. With nothing on the inside smaller rail. The second is the glow titans on both. Seem to work well and even with it split at back they have not popped off yet.