Done this route in the opposite direction from Borgo San Dalmazzo.....It got a little interesting when it began to snow on the approach to the summit of the pass.
A great way of crossing over in to Italy, the French side is a bit rough as you climb up towards the border but the Italian side more than makes up for it. There's a great set of hairpins you can stop at the top and look over before you tackle them and the run down in to italy after them can be very fast (well it was when we went!)