Maybe you should begin by giving year of bike and carb type, there's only like 500 different spec locations even on the stock needles. Then after that still a crapshoot, you put the clip where the engine runs best after trying the OEM location. Many things affect that best guess.
That's a normally leaner setting there and a potential danger but some few needles do spec at that. The normal totally unknown tuning location starts at the middle groove.