Orange Whip said..
NP 400 RDM 90% mast arrived today. Interesting that is has a rubber stopper sealed in the top of the bottom half instead of it being sealed off flat. When inserted the stopper causes the two halves to work apart, won't happen once it wears a bit but wonder what the idea is with that. Always tape my masts so won't be an issue.
The plug in the top really grabs the pin in the sail. I shaved the pin down so that i could remove the mast top, by my self.