Hi there
First off congrats on a hammock/tarp set up.. I've been using my DD Travel hammock since april, done over 20 nights and it is the only way to camp....
Couple of suggestions... I added a pair of whoopie slings and trees straps..(whoopies bought off UKhammocks for £13...& tree straps made myself from climbing webbing.) This set up reduces bulk, is very easy & quick to set up. Has no stretch so your hammock is the height you set it...Check out this video to show you how...
http://www.youtube.com/watch?v=d7NZVqpBUV0
Also your hammock looks a bit tightly strung. Rather than lower it I'd add a bit more sag. This will allow you to sleep more diagonal & avoid shoulder pinch. There's like a sweet spot, where you can lie confortably but not get a ridge down the middle of the hammock. You can add a structural ridge line from end to end at the gather of the hammock of around 100 inches.... When this is just taught, but not tight you'll be close to your sweet spot.. It may take a bit of adjusting to find the exact length ridgeline needed. Check this out for lengths
http://dejoha.com/projects/hammocks/...alculator.html
Finally these videos give you an idea on which way you can set up your hammock for ease & simplicity...
http://www.youtube.com/watch?v=Yw6P3pHt8KI&NR=1
Enjoy your hammocking!!
cheers
Gareth