Thanks so much for all your help, everyone who voted. I also 'polled' my acting and bio classes, and with the combined results from all three, the winning name is Mystic!
(bit easier to say as it is, as my proffs pointed out)

I weighed the big guy the other day and he came in at 226g. I hope that's a good weight for a 18-24 month old corn. When I fed him last night he took two FT 'large' mice, so he has a really good appetite.

Thank you again for participating and I'll post updates on both corns as they come about.