Red Line compatibility

[SilverSurfer]

Hi,
Are compatible the (2010) Red Line masts with Reflex 3 or new 4?

Another question, I want to change my Slalom Sail, and I'd like to know the availability of new Reflex.
Sadly the stock of Reflex III is out.

Good wind

[Krister]

I'm using a Red-Line mast in my 9.6 Reflex III, works great. These sails have a very wide range, good low end power while still being really stable at the high end. I did +27knots the other day with very little effort on a HWR.