Very nice. I might suggest a reference to precedent - that Vermont has (always?) had this way of handling second amendment rights, and that Alaska adopted constitutional carry in ______, without blood in the streets, followed recently by Arizona.
Few people, particularly politicians, like being the pioneers out in front trailblazing. Following someone else's lead is much more comfortable, and the WI pols may be completely unaware of constitutional carry as a current reality for (some of) America's citizens. Heck, if you can locate the names & contact information for appropriate legislators in those three states who the WI pols can reach out to, all the better - include that information, too.