Ron may have some better info, but here is what I can tell you about installing a rubrail. It helps to have two people, one to pull and line up and one to drill and screw. Point #2, it helps to have 2 cordless drills, one to drill and one to screw. It also helps to heat the rail up before installing, most made "hot boxes" consisting of an insulated box large enough to hold the rubrail with a 100 watt light bulb to heat. When doing the bow bend, you need to heat and stretch the rubrail to make a tight fit, careful to not strech and overheat which will distort the channel where the insert snaps into. Only snug the screws to the rubrail, overtightening will cause distortion which will show where every screw is once you're done. Use the right drill size for the screws, stainless steel screws will snap off fairly easy. Just some pointers.
As a side note, I remember there used to be a show on TV about DIY boat repairs and maintenance. I think they did an episode on rubrail installation. Someone with some internet skills may be able to find this online.
