I had a short stint with the 2" rayzars for a while but I'm now back to the old stand by of 5" parabolics for any hunting arrow.
They simply work on everything.
Bright Red barred, fluro Yellow, Orange, Green,, nice pretty colours.
A bright green nock with bright yellow feathers going down ranges looks like a Dandelion in flight.
Bright Red Barred with a Red Wine colour nock just looks too cool no matter what.
Oooops, thought you were talking feathers.
Sorry.
John.