couple of things to try.....one is to paint the INSIDE of your self knocks with a flat white (I have used liquid paper) when on the bow even the birds cant see it, just you when ya let 'er go.....second, I have some high visibility dyed deer tail, will give it to ya if ya want it...a few hairs tied in with your fletch butt-wrap and ya can see 'em pretty good.
rich