That would make sense to have a richer needle. Because when I am at WOT (even though the slide isnt all the way up with the stock throttle) and i let off the throttle after being at wot and then i try to give it half throttle while the rpm is still high it bogs. Then I have to crank it all the way open to get it to go again. That means the needle is to lean to keep up with the main jet right after WOT right?