| My wife is now using the 715. Her third MM pump, used the sof-set until several months ago. Switched to the silhouette.
The reason, running into too many bad sites with the sof-set after several years use.The silhouette has helped that situation quite a bit - it's not perfect, but a much better average.
I'm sure some of this could also be due to personal characteristics. And from what we understand, most endo's begin MM users on the sof-set, its easier to manage at first.
So it eventually comes down to personal needs and preferences. What works best, at any particular time. | 
