Hil, get down to Islington the night before if you can! Flash Company is not terribly likely to be on the programme because Islington is not a very chorus-y sort of club, but either venue we'll respond to requests if you're there...
It's getting better now, but with a recording sesh coming up it wasn't worth the risk of singing hard and ruining it again.
The usual remedies are being applied, including the sacrifice of a bottle of cooking whisky...