Apple juice wine recipe - pectin haze?

The apple juice wine is being slow to clear. Suspecting a pectin haze, I make a pectolase starter as described in CJJ Berry's wine making book, with half a pint from the hazy wine, and a teaspoon of pectolase. This was left for a few hours in a warm place, then mixed back in to the wine.

If this doesn't work, Vinclear (isinglass based finings) have worked for others on apple wines.