I'll give that angle thing a shot too... I ended up having the straps up to maybe 5'9" or so by the time I wasn't sure what to do anymore and just laid in it. It wasn't uncomfortable but I don't want to damage my new hammock.
Also really really hard to get the thermorest pad to stay under me. Issue is I am just about as big as the pad so if it was off just a little I was cold. The temperature was below freezing today though.