MIKUNI Needle question

I am at 6000 feet altitude and feel I am running a little bit rich in midrange.
I have a 34 single Mikuni.

If I wanted to lean out the midrange, would I raise or lower the needle by changing the circlip position?

"For dummies", someone explain?

thanks

raising the needle's position (by lowering the clip from the top of the needle) allows more fuel in, lowering the needle allows less fuel in
so raise the clip position a notch closer to the top to "lean" it a bit

thank you Mike!