Susan and I were in the area September 11 and 12. We didn't find the tops of any of the peaks, though.
Follow the Morton Cut-off to Lincoln Pond Road and turn right. The second left turn after the West Kennebago trailhead (which, frankly, I wouldn't even have noticed if there hadn't been a truck parked there) will take you up to Wiggle Brook Road (check your DeLorme—it's the dotted line in the 2004 edition that goes past Bernie's Bump). At the end, turn right to go to Bear Brook Road; on the left, just before the missing bridge. Bear Brook Road forks, but don't go up the obvious road to the left; stay low on the twin tracks. I was able to drive my Corolla up to a big clearing. There was a washout in some dense trees that I didn't want to try to cross. It wasn't much farther beyond that to the impassable washout anyway. Be sure you have some good directions for the hike with you, like Bob and Geri's GPS-generated map.
Lincoln Pond Road had two or three washouts, so watch your speed and don't try to go back on these roads in the dark, or you may drop off into the ditch.
For Cupsuptic Snow, take Burnt Mountain Road, the first quick left off Lincoln Pond Road. Eventually it will bring you to East Branch Road, but notice!—there are two East Branch Roads, and I believe it's the second one that will lead you to Mount Snow. There was active logging along it. One of the men warned us that there is a 400-pound bear in the area "and three others." It sure looks like the right road to take on the map, but it only led us to a plateau between two high peaks, so I don't know for sure if we were on the right road or not or where we ended up.
There's supposed to be a cairn at the end of the road with a herd path opposite it which leads up the mountain. There was a cairn, but it was not at the end of the road and there was no herd path opposite it. At the actual end of the road, there was no cairn, but there was a tree with a lot of pink ribbons tied to it and a herd path behind it which led to the aforementioned plateau. Nothing there seemed to agree with the map, so we went back down. If anyone can explain it, I'd love to know.