I finally got around to doing that first straight razor shave last night and, long story short, it was amazing! Of course I only managed to do half the right cheek and a quarter of the left (with the right hand of course... baby steps...), both WTG and ATG.

The blade: a brand new TI Singing 6/8 with the factory edge, which I used straight out of the box (i.e. no stropping or anything, except for cleaning that shipping oil).
The good news: no cut, no skin irritation (although there was some redness around the shaved spots due to pulling the skin in all direction trying to figure out a way to see what I was doing in the mirror). Seeing the recent discussion on rust, I even managed to successfully pay attention not to get any water on the scales or near the pivot.
The "bad" news: After only the first pass (WTG) on the right cheek, the shave was closer than what I ever managed to do with my DE with 2-3 pass, which leads me to the simple conclusion: my DE technique is far from acceptable, but I already knew that.

I plan on repeating the "factory-edge" shave again once or twice then add the clean leather strop and see how it goes from there.
Now I'm off to watch more video to figure out how to do more than 3 square inches with the SR...

Cheers.