I don't have any 225s, but I think that's probably the sweet spot for me as well. I end up using 210s most of the time at home but break out the 240s when doing more prep and the 270es for big cabbages, melons, roasts, and whatever. 210s are fine in most situations, but there are definitely times when just a touch more length would feel more comfortable. Like many here, I'm not super particular about measurements on knives but I will say that my one 8" blade (a ZKramer) feels noticeably shorter than I prefer. So I do think an extra 10mm of length here or there can make a difference.