In response to Craigs points:
Crossfade works fine in Studio One. I think with any crossfade you actualy have to listen to it. Just relying on a certain type of crossfade won't work. You need to use your ears and listen to the transition. There is no better way. Editing is a simple matter if just grabbing the little handles in the fade and drag them around. (after the xgfade is done) If you are mastering taking a few seconds longer to edit a Xfade is no big deal.
(In fact in V3 they have given you more options in the transition shape now) If you work in 64 bit and a higher res I think you still get the benefits. Why not just create a mastering session in 96K and be done with it. (I do like the upsampling feature in Sonar for VST things though eg NI 'Prism' being rendered out at a higher res) A few great mix engineers I master for give me 44.1K 24 bit files.
Studio One has full clip by clip or event processing. Always has. (well V2 anyway)
To be honest I don't crossfade songs that often anyway but it is still easy to hear it if you need to. In fact now with the scratchpad window more mastering options are possible than before.
Tracks or clips (events) can be pitched up or down and sped up and down very quickly and easily. Those settings are in the inspector box. I would
not be doing that in mastering so much anyway. It is a compromise no matter how you look at it.
More to the point your video was good and I have found myself doing very similar things. I did not think the mixes were great though. It is always better to master a fantastic mix, it is just so much easier. Mastering a mix that is less than great is always harder and I take my hat off to those who can squeeze greatness out of such things. I am very lucky I get to master some very nice mixes.
I am enjoying Harrison Mixbus though. I like exporting just a few stems from SOP and dragging them in there. Nice combination of EQ, dynamics and tape saturation on tracks and buses to get into some very sweet sounding mastering. I am about to go to V3 there. Should be good I think.