My quick opinions on awnings is the 270's
will touch your hatch. So be prepared for that, even putting a hat between the arm and the hatch is enough to protect it, so long as it doesn't blow off. Also the larger ones with the added hinge and arms in front (OVS Nomadic, 23 Zero Perigrine, Ironman Deltawing XL, etc.) are not as good as the smaller ones with just the rear hinge. Again, my opinion... they weigh more, take longer to put away, are difficult to get back into the bag, and the party is always in back by the fridge, never up by the front fender. your experience may vary.
I've spent a bit of time doing videos on these though for anyone interested, including the OVS, Deltawings, and Foxwing/Batwings mentioned here recently. Here are the pages...
www.gamiviti.com
www.gamiviti.com
www.gamiviti.com
hit me up with any questions/comments, thanks. happy awninging...