Where do you live, Minasizer? What kind of waters are you fishing?
Names of the streams? What rod weight are you using and what weight
fly line? What is a "heavy line"? Please don't tell us you are using
a 10 weight line on a 5 weight rod. d;o) Learn how to fly fish
before you tie your own leaders. Chances are you will like a
commercial leader/tippet set up. Match the fly to the leader. I
doubt you will be catching any 2 pound trout for awhile, so a 2 pound
leader/tippet should be ok. BTW, you should be able to land a 4 pound
trout on a 2 pound leader.