Is toast more likely to land jelly side down?

I did a Web search on this and one answer is that, given the height of a typical table and the rotation rate of the toast, there is just enough time for the toast to make a half rotation, causing the bread to land on the jelly side.

That may be true, but I was curious as to what would be the case at different heights. Does the toast rotate at a constant rate? It seems to me that, since the center of gravity is closer to the jelly side, the rotation fights gravity more when the jelly side is down and benefits from gravity when the jelly side is up, causing slower rotation away from jelly side down and thus increasing the likelihood of a jelly side down landing.