Currently to get up to Marksman (eliminates weapon sway) you also have to buy Weapon Sway (reduces weapon sway by 15/30/45%) which makes the later a waste of at least one skill point for anyone who uses Marksman
One way to address this is to give Weapon Sway an alternate effect which comes into play if Marksman is active, perhaps letting you reload at 15/30/45% speed while running if Marksman is active so that it remains useful?