08SM Hesitation

I've got an 08SM with 3x3 mod and rejet. South Florida(Sea Level) 25 pilot. 155 main. blue needle now on third clip. Keintech fuel screw at 2.75. Stock pipe and air filter. I originally had it set up with the blue needle on 4th clip. Was getting a lot of hesitation at about 1/2 to 3/4 throttle, 4th gear at an indicated 55-60mph. (15/39 gearing). Raised the needle to the 3rd clip and have gotten improvement but not yet eliminated. Any input about using the red needle instead? I'm going to play with it tomorrow and try to clean it up a bit. Any input would be appreciated. Thanks in advance. James

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