Growler,
Fair enough, that particular lining paper says to butt join (
are you going to do it just because you are told to do so?) but many others state differently, hence the reason you should
read the instructions!
Dec,
I think you are right in saying we should agree to disagree so I will end it here by saying, as you have already, that the OP's solution was given immediately and lining paper used as a finish paper should always be butt joined.
mrH