if i get a phbg for my moby(i like fiddling with needles rather than buying jets) should i just get a 15mm one from dellorto direct and is there anything i should know about putting one on my bike, i already have the 15mm intake will that work. and is there anything else i should know, i mean for an extra 30 bucks its no big deal especially when i dont need to buy a bunch of jets either.