One of the pucks I ordered is the latest GlobalSat. The generic one I received yesterday didn't work in S&T or MapsPro, so I've requested updated drivers.
I've taken the Roca Azul, Sal & Barb's, Lake Camecuaro, Uruapan route to Parzcuaro. To visit Rancho la Mesa, it appears as if the Morelia bypass will be the quickest and easiest way.
I've been on many of the backroads, and as my RV is 30 years old, I prefer the cuuota, due to the presence of the Green Angels. Also, since my RV is a non-dually campervan, I pay the same tolls as a car.