Ray, I had read somewhere that the Park5 was planned to replace the Park1 which was not always correct. but at the sight of the documentation I do not understand too much the interest of this park5 which is rather the park4 upside down. I made my room with the target of park1 which also works well at home and therefore park 4 or park5 is kif-kif as far as I am concerned.I think that with the mach2 all the parks should work perfectly and even that we can choose our own park.