Gakayaker is the ridgeline that tight prior to you getting in the hammock or after you get in the hammock?
Also how high off the ground is the hammock? Chair height? Higher or lower?
Also what is the distance span of the trees that you are using? The farther apart the tree's the higher up the suspension would need to be on the tree's!
Having a tight ridgeline is fine, but too tight and you run the risk of snapping it when loaded, also the 30* angle is very subjective, meaning it varies from person to person, but the 30* angle is not a requirement to hang effectively! This was mostly started as a result of people hanging their hammock suspension guitar string tight and were having major problem's!
You will get it, it just takes some time setting it up, a lot times of setting it up to get it where you need/want it to be! I'm sure you know, but, there is a bigger learning curve to hammock's than there is with tenting, but with practice (and maybe a little help, from this great place that we all visit (HF)) you'll get it straightened out!!!