My second babe was a HB. We got the labor going with nipple stimulation. My MW was leaving on vacation (and I was SO attached to her). By dh, a teacher, was starting school in 3 days and was only granted 1 day off for the birth of a child.
: So we decided to try using a breast pump to induce labor. I was 40 wks exactly, and I was starting to efface etc..
We pumped one side for 15 min., pumped the other side for 15 min., then walked on my treadmill for 15 min. I did this for about 2 hours. The whole time I had contractions and they were about 6 or 7 minutes apart. We started at 9 pm, but after I quit, the contraction basically went away. They were still there and prevented me from sleeping, but it really felt like I wasn't getting anywhere. So in the morning we started the pump up again for another 3 hours and that put me right into active labor.
Don't know if this is helpful or not, but thought I'd share my experience.
I do think you have to be "ready". And if you are, it can really get things going, but it takes awhile.