I used the miLoop (iantechmed.com) on approximately 10 cases this week. I can honestly say that I wish I could use it on every single cataract case! It basically allows you to transect any density of cataract into completely-separate pieces. There are no left-over ridges or "jig saw" puzzle to worry about.
For "regular" cataracts, I just used a one-handed technique since the nucleus never torqued itself out of the bag. However, as you can see from this video, for very dense cataracts, you should use a 2nd instrument to provide some countertraction and to prevent the nucleus from tilting as the wire cuts through the nucleus.
This video starts after I have already stained the capsule with trypan blue and have performed a thorough hydrodissection. My apologies for my inefficiency in eating up the cataract. The video is presented unedited so you can see my own personal struggles with red cataracts!