Hi Cardinal -
In my experience, there isn't too much difference in the PTA-->PTO process state to state. Hopefully, you'll find a ton of insight and others' experiences here on the boards and the website as a whole.
Does anyone have information relating to switching from a pta to pto in WISCONSIN? If so, would you be willing to share your contact information as we are looking to speaking with and/or meeting with a group that has been through this. THANKS!!!