Team,
Years back I took some pictures from the 1970 Proplof and I was impressed.
But since it was a vintage one, I didn't dare to play too much with it.
I had the opportunity to play with the modern version (much better IMHO - Heresy #1) that feels more solid and reliable (Heresy #2).
From the inside, it's powered by the Omega CoAxial 8500 that's don't requires more considerations. It continues to be excellent.
From the outside ... Let's the pictures do the talking: