Masts that work well with Neil Pryde Expression sails?

I have a 2007 5.7 Neil Pryde Expression sail that needs a new mast. I
was using an Neil Pryde X6 430 mast with it until it hit bottom and
snapped after blowing a move.

Can you guys tell me your experiences with using other masts with the
NP Expression sail line? For both SDM and RDM masts, which masts have
worked well for you? Which masts didn't work well?

I know there are lots of opinions out there about masts with other
sails but I am specifically interested in hearing about mast
experiences with NP maneuver-oriented RAF sails.

Thanks!
Alak.