I do quite a lot of HDR photography and tend not to use exposure bracketing at all. A much quicker and simpler way is to set the focus function to exposure (it goes yellow instead of green) then literally touch the screen shoot, touch the screen, shoot etc for each of the brightest or darkest areas. You can shoot 5 or so pictures quite quickly and they tend to be the ones with the biggest exposure difference eg sky to mountain to foreground. I then use lightroom to create the HDR automatically and it works well.