Been out today for longish ride. After 15-20 Miles the dreaded surgings back. Its just when following slow traffic in 30 & 40mph areas. Also approaching tight bends where I've changed down and Roundabouts. I am still able to ride 22mph upwards in 3rd & say 30mph upwards in 4th. Have played around with Co settings which was 20 the origional setting to +20 ie 40. Also adjusted fuel mod setting by reducing by 5degC or as far as it will go which is reducing about 9degC. Have also tried adjusting Trottle position sensor which was set to 16, adjusted up to 20 and down to 12. Would it be an idea to go further with these settings and can it do damage. Any advice much appreciated.