Steering slop help

Do what you want, especially if it drives straight.
However, some would say 3/16 is right for 35", not 48".

It’s still tracking straight in my quick test at 50, but I also don’t want improper tire wear.
 
It’s still tracking straight in my quick test at 50, but I also don’t want improper tire wear.

You're probably close enough to be within the acceptable range of toe.
However, I've told you what I thought it should be; or you can do your own research.
3/16 at 35"
1/4 at 48"