Does it make sense to change the PM2 to OM-D E-M5? I know, that they are using the same sensor and the IQ will remain the same. But sometimes when using PM2 I lack controls and wheels and a good stabilizer. Flipping screen is not very important. But the lack of a viewfinder, too, sometimes frustrating. On the side of PM2 is size and weight. The viewfinder can also be bought separately. Who are some thoughts and tips on this?