Ok, let's get too it, is 30in too big? (no sniggering at the back there J.P) I refer, of course, to the blade length on hedge trimmers... Finally getting round to buying a new hedge trimmer and am going for the HS81 R. But I'm not sure whether to go for the 30in blade or the 24in. Have handled the 30in one in the shop (I said no sniggering!) and the weight seems ok. It's a little unwieldy but the…