Neil,
Had a word with Alfie on my way out last Tues, looks like we might be able to get in 4 weeks out of two i.e. when Alfie isn't on holiday. We could probably do Tims idea of racing outdoors on the school field, with a bit of persuasion and if we could be bothered cutting grass and logging ropes about, moving the trailer etc....... I think I have talked myself out of that one
)