Hi peeps, does anyone know the differences between early and later gs850 barrels? I know later ones won't go straight on a gs750 case without modding the case mouth, but are there any other differences that you can see to seperate the two? I need to identify some barrels as to which is most likely to go straight on. I think the early ones had slide carbs, so does this mean the inlets are smaller? Your expert advice would be much appreciated.