It looked straight when I put it on, but I'll double-check that, since I have to tweak stuff anyway. Part of me thinks that it's just because I sat so weirdly with my old saddle. Since most of my power seems to come from my right leg (hence the knee pain, I'll bet!), I think I was shifting far to the right on the saddle to spare my right leg the rather unpleasant chafing, so I either wasn't sitting on my left sitbone much, or I was sitting somewhere odd so it didn't get a lot of pressure put on it.
I'll make sure I check if it's on straight. I know I had a bit of a problem in that particular regard with the old saddle, mostly after the LBS I took it to fiddled with my seatpost...

Out of curiosity: How the heck does one put on/take off/adjust a saddle with no cut-out? Any adjustments I've made I've done through the cutout. DBF took off the one that came on my Giant, before I had any clue how to do anything remotely mechanical with my bike.