On 2013–07–23 Andres Conrado Montoya wrote:

> \setupalign[verytolerant,stretch,lesshyphenation,hz,hanging]

From my experience, stretch often leads to rather terrible spacing.
I avoid it if wherever I can.

> 1. Is there any definitive way of avoiding […] hyphens at the end of a page?

The penalty \brokenpenalty tells TeX how bad it is to break a page at a
hyphen.

  \brokenpenalty10000\relax


Marco