I like CSV1 (x2) with AP:O1 & 3. Keeps me moving for the most part and gives me room for other fun things like HY1 and BO3. I know it's off topic, but I like my CSVs.
CSV 3 used to be an awesome skill .Remember before they nerfed it that it was a must have cannon skill for every escort.Unfortunately the nerf was too intense and even after they fixed the weapon power drain bug it never regained much of its previous popularity.
I cant think of many that would toss the almost 40% more dps of CRF and take CSV nowadays.