My 110 was the exact same way - pump the pedal a couple of times and it was fine. So I kept thinking that there had to be air trapped in there somewhere. So I just kept bleeding and bleeding, but it never got better. Finally stopped to think about what I had done, and anything possible that could affect it. I found that by adjusting the rear brake shoes tight, that it was better. I called Rovers Norths (where I had bought the brakes shoes), and asked them if there was anything special about installing the rear shoes. They said that you have to make sure you get them installed in the right places. There are pins in slightly different locations on the shoes that contact the eccentric adjusters. If the shoes aren't installed in the right location, they don't contact the adjuster properly and it takes more stroke of the wheel cylinder to engage the shoe. I can't remember exactly which shoes go where, but I'd suggest calling RN since they told me. You need to look at the shoes very closely to see the difference. Since I corrected this, I've had no problem.
Oh, and a simple way of seeing if you have your shoes installed correctly is to rotate the adjusters. If any of them spin free (i.e. you can rotate it 360 deg), then the shoe is in the wrong location.