This is one of my favourite spins on the Knockmealdown's. There's about 1,100 gain/descent in it and it's pretty straightforward from a navigation point of view. The only place where you might need a map/compass, of a bad day, is getting from Knocknafallia to Knocknagnauv.
Picture was taken from Knockmealdown a while back. The 'dark' Sugarloaf in the foreground and the Galty's beyond.
Start is the trailhead at Goatenbridge and return is via Glenmoylan and the East Munster Way.