First off, let me say great site! There is alot of good information on here. I am new to fly fishing and tying. I have only been tying for a few months. I am getting ready to tie some egg patterns using McFly Foam and Antron yarn as a blood spot. Just out of curiosoty how important is the blood spot?
Here is the web site to the pattern i will be using:

http://hipwader.com/2003/easy-egg-fly-pattern

Thanks, Nick Good