One suggestion for adjusting the cable:
I like to set up the cable in the Hi>Neutral gate. I put the shifter in High then shift to Neutral. I feel and listen for the internal detent to click the trans into neutral. Then I adjust all the free play out of the cable such that there is no free play at the Reverse side of the Neutral gate. Obviously, I do not want there to be a chance that the trans will accidentally shift into Reverse. This procedure will prevent that. Then shift through all the gears - Low, Hi, Neutral, Reverse, Park - to make sure they are all working as shifted.