ORIGINAL: psuguru
ORIGINAL: mclina
I built a Four Star 40 several years ago with the stock plastic rods. I never noticed any changes in trim due to temperature changes, but I did notice that they started to get sticky after a couple of years.
I put a drop of ''after-run'' oil in the tubes from time to time.
I don't like oil on these as it actually collects dirt/dust which causes drag. Keep them dry and clean for best operation.