BOARDS magazine from the UK in the current issue does 400--460masts, last years May issue had the most comprehensive test I have ever seen on 16 masts. Unfortunate but neither test included a Severne. Your initial question is confusing, anyone would need more information , like are you interested in SDM or skinny, 50 75 100% carbon ?What length ? Boards report on P/X Wave RDM reads:: "Fairly middle of the road for bend curve, verging on flex top amd relatively stiff. the P/X is another middle ground mast that is likely to be more or less compatible with most sails. They have a great reputation for strength and durability." My collection of masts is almost all P/X , can't go wrong.