Bear in mind that the amount of sag (Therefore ridgeline length) can be a very personal choice. The "head room" from my hammock to my ridgeline is about 2', for a similar length hammock Firewalker has about 3' "headroom". I can sleep in his, & vice-versa, but neither of us are really comfortable. So be sure to allow for adjustment, as you may find your sag too much or too little, also, the hammock material will likely stretch & change your sag & you may need to adjust for that too. I think that is why I don't find Hennesy's comfortable at all, the sag is wrong for ME.
When you have a backpack on, no matter where you are, you’re home.
PAIN is INEVITABLE. MISERY is OPTIONAL.