WTG on hitting goal, Dave!

I'd suggest adding those carbs back slowly and perhaps going back over the section of the book on OWL and Maintenance. You may lose more fat still until you find your CCLL (which I'm sure you know you should have been aiming for long before this !)

Jumping up to 50g suddenly will probably have some nasty side effects - a gradual climb is better. I'm guessing that it will take a while at 5g a week, 10 might be better for you - being male you'll be able to handle more carbs than a female - your CCLL could be as high as 100g.

Nat