Well for starters unless you are really in it, you aren't on the high speed needle as much as you think. I would put the high speed needle back rich a few clicks. 14 seems like A LOT.
I am still a noob as tuning nitro, I am hoping to get some advice to further tune my machines while in BHam this weekend. Right now, my OS55 is completely stock rich and running great. I may just leave it!
Keep in mind too, fuel makes a huge difference. I put Cool power in a YS60SR tuned on Wild cat, bone dry forced auto at 4:10. Next tank put Wild Cat, room to spare at 5 minutes!