I took two rain jackets (both good quality) last year on my tour Hoek of H to Stavanger as I expected it to rain hard - it did - but it was not such a useful excercise - really need to wear the wet one at every opportunity to dry it out
alternative waterproof bottoms I found very useful - one full length and a pair cut into shorts (old pair that had become damaged when I had an incident in Spain) - it is easy and quick to put the shorts on and get them off when the weather is changeable - full length when it is cold and has set in for the day