As you know, for test grades I use the highest raw score in the class as the 100% mark and adjust everyone’s grades up accordingly. I don’t use a “curve” which assumes that there’s a certain percentage of the class which deserves A, B, C, etc.

I don’t use quite so dramatic an adjustment on the final course grades — since I’ve already done it on tests, and dropped the lowest one besides, it would be excessive. But I do shift the final raw scores up some.