If 0/26/45 fails because of energy starvation, 0/28/43 will probably be the same.
For a combat/subtlety hybrid you'd probably want something like 0/31/40, with imp sprint having to make up for the ShS loss. I personally would turn that into this... Not sure about the use of precision in PvP. While the off-hand boost rocks, precision is 5 useless points if you're already on the pvp hit cap with arena gear, and 10 points for 50% off-hand damage is a big cost.