Actually, the damage increase you get from skills (tactics, anatomy, lumberjacking) do not count towards your DI.you just reach your DI cap quicker and with less items. If you do tactics+anat+lj, you need less DI items, but you have to be using an axe, so no pot chugging. It is easier to do in a group and joust mobs, as far as pvp goes... looks the same