I can certainly see how they would spook deer and based upon your experience with the summit and the loggy I'd definately say so. IMO stand location is of utmost importance. I'm always looking for a tree with good back cover. I prefer to hang my stands in hardwoods but like to find a tree with a pine or spruce either partially covering my front or back to break up my outline. Another thing I believe is important is to get 18-22 feet up the tree. I personally do not like to go higher when bow hunting due to the angle of shots it creates but getting up close to 20 feet will help to keep you hidded from view.