I could, but it's not very useful considering that almost all the I2a1 in Slavic countries is I2a1b, and the greatest part of I2a1 in western Europe is I2a1a. I don't have enough detailed data for I2a1 subclades in Italy, Switzerland, Austria, Germany or France to clearly divide the two subclades in the east-west boundary. That's the main reason why I haven't made separate maps yet.