Which end of the needle are you counting the clip position from? Generally clip 1 is the top, and clip 5 is towards the pointy end (points into the carb). Clip 1 is the leanest, so going to clip #4 you have actually moved richer.
JDs two needles are very different in the idle-1/4 throttle area so its not fair to totally compare them, and basically what JDs richer to leaner part tries to address is the lower throttle area. IE try the richer needle in clip #3, then if thats too rich try the leaner needle in a richer clip, then if thats too rich try it in a leaner position again, etc. What most find works better is to find the diameter that works best (blue/red), set it up with a pilot that works, and then select the clip position for best response.
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