I was thinking of phoning them up and then getting someone to go and pick one, but I will be in the US in a month or 2 so hopefully will get to look at them then.

I just want to handle one and shoot one and see what they are really like.

I reckon it will take me 4 shots to work out if a 470, 500 or 600 Nitro shoots OK / is regulated - OR at least Side by Side.