I just installed a new clutch in my 2011 WRX, and have air in the master cylinder that refuses to give the ghost. Has anyone had any luck with any kind of tool that forces fluid through and evacs air? I have gone through 32 ounces of brake fluid; I have tried bleeding at the slave cylinder and at the MC...for about 2 hours. still not getting enough engagement at the throw out to engage smoothly. thanks!