My Atomic Overload 120's were a great boot until they got packed out. They had way too much volume for my feet and I never felt a great connection to the ski. It came to the point where I was wearing two pairs of socks and cranking the buckles all the way down. I needed something much more high performance, and I tried on the G2 110 and had to have them. After having 1080's, Beasts, Rampages, TWalls, and The Overloads, I escaped the "park" boot trap and ended up with the best boot I've ever had.
For starters, the G2 110 is a very stiff boot. Rated at a flex of 110, it is much stiffer than other boots rated at the same flex. There are two rivets on the cuffs that are removable. I have not taken them out, but with them both in the flex is much higher than 110. I would say it flexes more like a 130. This translates into a ton of power transferred to the snow. There is no chance of over flexing them. If you charge hard and ski fast a stiff flex is perfect.
The G2 110 is also very narrow. The shell has a 97mm last, and the cuff is also very narrow as well (this is a huge plus if you have chicken legs like I do). I have never had a boot fit me well in the cuff, but these are nice and tight (only have to put the buckles on the first notch). The liner has a removable spoiler that takes up some room as well, and it is removable if you have slightly larger calves.
The liner is one of the nicest standard liners I have seen. They are a thin liner very similar to intuitions, but they have J bars in the ankles already build in. With a heat mold the fit gets dialed in quite nicely. The tongue is removable from the liner, which I cannot say I like all that much. There is velcro on the toe where it connects, so you can dial in the fit of the tongue but I find that it creates more problems than it is worth. When you pull on the tongue it pulls the toe of the liner back and can get bunched up.
Features: The shell is made of two different plastics. The main shell is a firm plastic while the overlap over the tongue is a softer plastic that is more pliable, which is helpful when cranking down the buckles; it lowers the chance of deformities in the plastic. All four buckles have micro adjustment and you can move the clips on the overlap. Both rivets on the back of the cuff are removable to change the flex. There is no canting adjustment. The heel and toe lugs are replaceable. In between the lugs there is a softer rubbery material that grips well when hiking. The power strap works well; much better than on most boots but not as well as on Rossignol's Alltrack 120. The boot board is soft, but it is not rubber like in most "park" boots.
The liner is very easy to remove and put back into the shell, which is surprising for a boot that is so difficult to put on. Like I said, this is a performance boot, very narrow and stiff. It takes some effort to get them on, and if they are the least bit cold forget it, you'll need a friend to help you out.
The first hour in these boots was brutal, as it should be. But once I worked them in they because extremely comfortable. They as so low volume that any little movement is transferred to the snow. You can really get the most out of your skis when you have a perfect fitting boot.
I have a pair of Boot Doc footbeds that were in my Overloads, but they do not fit in the G2 110. I did not have time to trim them down so I have only skied them with the standard footbeds.
Hiking / walking with these is less than ideal. I hiked from Snowbird over to Alta and then walked from the base of Alta back to the bird and I thought my pinky toes were going to fall off.
Overall, these boots are the best purchase I have ever made as far as ski gear goes. You do not need a "Park" boot to ski in the park, and you definitely do not need a soft boot necessarily. I am sold on the overlap stiff boot.