Is farming on the edge worthwhile?

In the past, we heard a lot about grazing systems which involves very heavy stocking rates, extremely tight grazing and using very little concentrates.

The advocates of this system are generally very prominent after a few good grazing years.

The system generally involves feeding very little concentrates, resulting in relatively low milk production per cow, little or no grass being closed for silage until May, minimum winter feed, and grazing pastures too tightly.