The end of the slot should be at the pin to start with little or no drag. I would remove the return spring the clip and washer and try to slide the slotted arm off the pin. If it drags too much it's too tight and can cause firm or harsh upshifts. If it drags, slip it off and screw the end in and put it back on the pin. As I said, to start, the end of the slot should fit against the pin, no gap or tension. You can fine tune from there. Unscrewing the end will increase shift feel. Screwing it in will soften the shift. Only a turn or 2 at a time then test drive to see how it is.