Is it worth getting a Chipstow mast repaired? We have two relatively clean breaks and a fracture. Is it DIYable? Will it break again, will it ruin the characteristics, that kind of stuff. What's your experience?

Any thoughts appreciated.

I think two breaks is the point of economic write off. For a competant (And brave!) DIYer if you can get Jacko to tell you how he does them it's eminently repairable. The mast off Rong Number has been broken a number of times!