Well back i went and had another few rounds on the indoor range, chatted to a guy in the next booth who offered me a go on his 510 hunter multishot which i accepted, that was it i was sold, i thought the 400 was smooth but the 510 was superb, so im a few few £££ lighter but you only live once, and my new gun should be in for collection on wednesday, definately wont sleep tuesday night, and i found out the guy who let me use his 510 lives in a nearby village so we hope to get a permission or 2 together.