Great set of videos. Tex. All that time on those race bikes must be working up your appetite again for Orbiter and this community, which is great to see!
On the launch video - I would very much like to see you discuss why you don't just launch the DG vertically and go to 200 KM with zero orbital velocity. (Obvious, I know, but the graphical orbit view and showing the effects at hist speed time would be cool. Then show a ballistic sub-orbit, and then transition to the full orbit. (Of course - burn to your desired parking apogee height, MECO and cruise up to the apogee, then burn to circularize (with a demo of what happens if you forget the second burn!!).
The thing I was talking about in the MFD / TransX thread was the difference between sub-orbital velocity and orbital. Say you are flying from JFK to LHR in a plane. You would go great circle, all things being equal, as it would be least mileage. But often the flights go on a southerly routing to avoid winds / storms / etc. I was interested in the transition from say a constant latititude sub-orbital trajectory to an orbital trajectory. (I.e. flying at say a constant 50 degrees N, 090 heading (no wind), you describe a circle centered on the polar axis, but at 50N versus the center of gravity of the Earth. If you continue to add velocity, headed constantly 090, then you transition into an orbit with 50N / 50S extremes, and centered on the Earth's COG. Physically, that's an interesting transition, as the immense amounts of centripetal (inwards facing) and centrifugal (outwards facing) force take you clean out of your 50N circle into that orbit.
Anyway - if you go anywhere near showing this, you would be a hero!!
---------- Post added at 12:53 AM ---------- Previous post was at 12:45 AM ----------
One thing on the Orbit Sync video ... you could also add an Advanced Sync version for docking with elliptical targets. In this case, you need to think about aligning more of the orbital elements, so your Peri is at the same AgP as the target, and you bring your ApA and PeA to a close alignment with the target. The simple way to move the AgP is to get circular, and then open up into the elliptical orbit at the right point. To move the AgP forward and back, you need to do off-Apo/Peri burns (e.g. 30 degrees off) carefully nudging it!