Great answer. 2 things to add: 1. The SOI change actually works because the program automatically throttles back the timewarp to 50x before the change, so its more of a workaround than a fix, the underlying problem persists (and can't really be fixed). 2. If you are waiting for a transfer window at low orbit, you can always go back to the space center, where you can always have maximum timewarp. Just warp to the correct time for the transfer (you can e.g. use Kerbal Alarm Clock for that http://forum.kerbalspaceprogram.com/threads/24786-1-0-Kerbal-Alarm-Clock-v3-3-0-1-(Apr-28)) and resume steering the capsule. Cheers, Boone.