A keying master's help I need

I'm going to load it up and take a look at it in a little while. But it looks like you need to use the mask tools to refine the key. When it gets tough, like with frizzy hair (I always have frizzy hair models put their hair up or pulled back), you need to go to the advanced tools. Here's some info to get you started.
help.apple.com/finalcutpro/mac/10.2/#/ver40b003bc

Thanks Ben. Just noticed that I put this in the completely wrong section so will open the topic again. Peter, if you read this feel free to delete, thanks!