I just push the tip through the fish, loosen up the tip and pull out. Through-shots are a pain though. I figured out a fix for that though.
It's hard to explain. I'll take some pictures tomorrow if you guys want.
Make a loop around your safety slide or however you tie to the arrow. Make a loop at the end of your string coming from your bow.
Stick the loop from your bow under and through the loop on the arrow.
Pull the loop from your bow all the way through the loop on the arrow to the tip of the arrow. Put the tip under and through the loop.
Pull the arrow all the way through the loop.
Very simple to unhook and rehook the arrow to the main string. Knot will never come undone but will never tighten.
If the arrow goes all the way through a fish, just quickly unhook the arrow and pull the main string through the fish then rehook the arrow.