Any advice on a 9000 hour fixed wing jet pilot converting to rotary CPL/ATPL would be gratefully received
I reckon 50% of the answers you'll get will be along the lines of: "Go for it; you'll never regret it", and the other 50% will be: "You must be mad; stick with f/w".
But then, if you've been reading this forum, you'll know that anyway.