When fishing two or more flies, I either use the 'dropper loop knot' or the 'blood knot'.
It seems to me that the fly on the dropper gets tangled/wraps on the main tippet. The length of the dropper is about 6".
Should the dropper be the same size(gague) as the main tippet, or should it be larger or smaller?
Is there a performance (fly movement) difference between the 'loop' knot and the 'blood' knot ?
Links included..........
* Dropper loop"..............
http://www.flyanglersonline.com/

** Blood knot..........
http://www.flyanglersonline.com/