"According to the Blizzak website the LM60's will come in a number of 19" sizes. I was thinking about sticking with 19" wheels and getting 235 front and 255 rear. Any major issue with that? I know the recommendation is to not stagger but i don't really want to drop to a 245 in the back."
This is a PM I recieved, I am posting here so that all you 19" people can benefit.
255/40R19 rear will be a good size for the LM60 on 19" wheels.
*Edit:* I missed the fact that there are also 265/35R19 coming, which would be identical to stock.
235/35R19 will exist, but that is a bit short. Would be an OK size for front.
Here is a list of all LM60's expected to be available this year: