I personally play a 50 Commando, since the 1.2 patch I have chosen to play my other classes since the initial "nerf"., only using him when DPS is the last spot to fill and needed. Now, with 1.2c, I have shelved him for the definite. Two others from my guild, playing troopers, one being fully specced in Rakata and Battlemaster gear, has chosen to reroll over playing their classes now.
We play in a small guild where positions are needed, having two of them reroll due to lack of any dps now, will hurt our guild in terms of further exploring end game and also frustrated many other players.
My example is likely quite true for many other guilds in the same situation.
Please BW take a look at the overal dam spec of Gunnery again. An investment in a 31pt skill needs to pay off in terms the class's overal role.