I can't do anything but agree with Kirk and Alterastro.
I'm the closest to Northampton (I live in Corby) and I'd be glad to meet you somewhere so you can at least have a try of one and see if you like it or not. I'm away this weekend but I'm working from home on Thursday if that suits.
Send me a PM on here and we'll see if we can sort something out.
Kirk probably remembers the pages and pages of e-mail that passed between us when he was wringing his hands over buying one!
Let me know,
Alan