Anna, you know, I was just in the mood to experiment!

I purposely bought Yukons for this recipe, as I googled around a bit and did see some recipes using it. I know however, that it is unconventional.
The first time I made gnocchi, I used
Michael Chiarello's recipe, and they turned out quite good. The recipe calls for baking the russet potatoes in their skins, then scooping them out. It was a pain in the ass, burnt fingers and all.
The next attempt, I boiled peeled russets, but found that I was adding more, and more, and more flour to get it to come together without being sticky, and they were a total loss: tough,chewy sinkers.
For
Batali's recipe, he calls for russetts. I used his proportions and method primarily, and added dill and pecorino.
This time, I used a food mill, instead of a ricer, as Mario calls for to process the potatoes. I worked with the potatoes very warm and as I noted, it came together surprisingly well, almost like I knew what I was doing. I rolled them into batons, cut and made ridges with a fork, taking care to fully mold them into a "shell" shape so they had a well in the middle as well as ridges on the outside.
As for the texture, they were a bit on the larger size as my technique for rolling batons is not terrific. Inside, they were creamy, but not heavy. Gnocchi that I've had in restaurants (ie: Eve) have been lighter, most definitely, but I was pleased with my own effort given my experience making them. What I think made them shine was giving them a quick browning in butter, so they became a bit crisp on the outside.
lperry, the ricer is a large garlic press, and I've used it for mashed potatoes and extruding things like little dumplings. Mostly I have heard and read that it makes for fluffier potatoes, as does the food mill. That has been my experience as well.