Fluting will not likely make you feel better about the weight, and adding barrel length will keep the weight up, granted you will get a little more velocity but at a price,not sure Bartlein will do a #2 in SS they will possible do a 2B in .284, I personally would not want my tube any longer than 24" on a 280AI, you could use a different barrel maker so you can drop down a contour size like a #2 or #3 Hart...so much give and take!
