NASA Innovative Advanced Concepts (NIAC) had their 2016 symposium on August 23-25, 2016
At 50 minutes of the video is the David Kirtley, MSNW, LLC, Magnetoshell Aerocapture for Manned Missions and Planetary Deep Space Orbiters talk
No upper limit to insertion velocity
Magnetic drag can be 1000 of times more.
Magnetic field can be tens of kilometers
End of phase 2 will have the cubesat hardware that will be ready to launch to test an insertion.