Thanks to all who have replied to this thread. I have a lot to think about. I never even heard of a Whiscombe before but it seems unlikely I will be buying one if those (How much??????). I will take the advice of Mr Gillies and speak to a few of my club members and try to nab a go on their springers, there seems to be loads of people at Bisley who are into them.
I have to be honest, out of all of them, I'm still pretty keen on the HW77 in the Colour Laminate stock. I just love the look of it. However- I'm not sure about the cheek comb being so low. I'd like the option of a scope if I turn out to be crap with the open sights