When winding an X-15 Instamatic, how many swipes of the lever do you normally make between frames when using a real 126 cartridge? I was looking online for an old manual or something but haven't found one. 2 1/2 seems about right in my setup when near the middle of the roll but isn't enough at the beginning and too much near the end. So I was wondering what was normal with a real catridge.

Note that my X-15F is now modified to not lock the lever after one swipe.