The front and the rear poles look a bit too high. Drop the rear about 3" or around there. Drop the front about 2" or so.
The guy-outs don't appear to be correct for a taught pitch. Each of the corner guy-outs should be close to pointed at the opposite, diagonal corner. Leave the centers off until it is totally set up and only use them if it looks like bad weather.
Use heavy duty elastic hair ties to maintain tension throughout the night. I usually simply loop them through the tarp loops and loop the guy-outs through the other side. This pretty much insures you have good tension, despite the 10% stretch associated with silnylon. They might fail in 40-60mph winds but I have weathered several in 40mph range with no problems. Cat curves(CCs) become pretty much irrelevant if you can maintain good tension on the two poles. CCs are designed to give somewhat better loading at setup than to maintain that tension through a rainy night. 10% remains 10% no matter how the fabric is cut. Without some compensation, it just sags on you. You want some way to pick up the stretch.
I often only carry one hiking staff at about 3.75oz (roughly 4oz.) I just find a stick about 16"-18" to prop up the rear. The front becomes anchored down by the two side/front stakes and the two diagonal corners and the center stakes and the one stake dedicated to it & the overhang. You are not likely to loose it. If you loose one you will likely "zipper" the whole front loose, but this is a rare occurrence (but, sh!t happens.) You might want to carry a 8" stake for the front.
Actually, you will have more trouble with water running down the side mesh than staking things out. The lowered profile will help with that, wind resistance, and rain splash all at the same time. Try it with some dowels before starting to cut down your poles. It almost looks like the rear panel might be a bit short, though.
