Here in Wisconsin, many towns use a peculiar numbering system for addresses. A typical one would be W130S6930 Hwy 60. With every map update, I would eagerly see if my TomTom would now allow entering these addresses, only to find they didn't. I just did the spring update (XXL 550TM), and son of a gun, I can now use this numbering system. I'm not sure if I checked for this capability after the previous update, so this might have been added one update prior, but either way, my unit is now much more useful to me. Life is good.