I guess some will have aesthetic reasons for NOT using a plastic type dedicated rubrail along the upper one. (The lower rubrail will hardly anytime touch anything and will stay nice with a coat of paint).
With the wear experienced after a few launches (and the beat up look of scraped paint) I decided to protect the upper rubrail with a professional type plastic rail. When I hear about sacrificial upper rubrails and the trouble of actually removing and replacing it, I am very surprised that the looks become that important. How it looks when the upper wooden rubrail is finished and ready for replacement is another question.
The plastic rubrail (covering the normal wooden rubrail of the plans) seem to be everlasting. There is no dent or mark in them at all after a few launches. Looks entirely like new! They are also designed to take an impact and dampening the blow.
You make your own choices, of course, and you may view things differently than I do, but I would not even dream of being without the plastic protection. Especially after having tried both alternatives. Just as an input for consideration.
