Newbie....I am assuming when hanging on slope that you want to keep your attachments on same plane? I have 11 foot hammock about how high up the tree should I attach straps, let's say on trees 15' apart? If you have trees at 13' does that then change the height of straps?
I am going to put eye bolts under my deck on the post there is slope of about 2ft for 15ft, so I would like to do it once and not have to change them, is part of reason I am asking

Thanks