I'm a 6'1/225lb. male, and I can't seem to find a perfect fitting bag. I have a TNF Blue Kazoo, which fits great around my stomach, hips, theighs, legs, and feet... but my chest/shoulders always seem to be tight. TNF sells a bigger bag, but it's a heavy 20* bag that has synthetic fill. I'd like to find a light down bag with atleast a 0* rating that has a wide shoulder rating. Price should be $600 or less. Any ideas?