Really? Where?
I said the 1/4" is dependent on tire size, whereas the factory recommended value is given in degrees. Kubtastic's last post shows the relation between the two, and in fact shows that 1/4" of toe-in at most tire sizes gives you values within factory spec. Where's the conflict?
'Slack' involves more than just worn rod ends. It's also the effect of road force on steering links and geometry, both in terms of tensile forces and tolerance in even brand new joints. The 'fix' as you put it, is to run higher-tolerance steering gear, such as higher-thickness DOM links and heim joints, which you can see gives a smaller toe-in value anyway.
Looks like you need to read a little closer.