My local shop ordered the AT boots for me and I got to try on 2 of 3 pairs. The three boots are:
Tecnica Zero G Tour Pro 130
Atomic Hawx Ultra XTD 130
Salomon Slab Mtn 120
I have long, narrow feet that are easy to fit it the boot is narrow enough for its length. I did a shell fit on both boots (28.5) and there was less than 1 finger. I plan to go up one shell size for purchase. I don't need or want (I think) a "race" fit in this type of boot. Toes were crunched in both boots.
The Tecnica'a won't be in for another month or more, but the other two were in the shop. I spent some time with both on my feet, even had one on each foot. Both flelt like the same stiffness, even though the Salomon is rated 120. This seems to be the feedback from most reviewers. The Slab was harder to get into than the XTD, which might seem counter intuitive. The Slab lower shell is not split, so you can't spread it as wide and that pinches your foot on entry, once in, no issue. The XTD is a little lighter, 100g's, but you don't really notice it in the shop, maybe on the hill? When flexing forward, both felt nice and stiff, close to an alpine boot in resistance, but not as beefy or solid feelilng. Pretty much as expected. I don't see a problem sking downhill with either boot on groomers. The Slab was more comfortable in general and felt a lot better to me on forward flex. The front/tongue of the boot distributed shin force nicely and when I hit the "wall" of flex, it was a little forgiving. The XTD gave me some shin bite and when I hit its "wall" in forward flex, it was not forgiving. The XTD had noticeably less room in the toes, but otherwise both were on the narrow side which works for my foot. I did play with the 4 buckles on the XTD and that did reduce the shin bite, it might just take a little adjusting to even out the shin pressure. The Slab had the better cuff strap, so that was probably a factor in shin feel.
Range of motion was less in the Slab in forward flex. The Slab has a front mini tongue and that becomes a stop on forward flex. When you hit it, thats about it for flex. It is not quite like hitting a wall, but close. The XTD didn't have that feel, it flexed about 10 deg more and then slowly began to resist. I physically didn't need more flex than the XTD would give. The Slab didn't go quite as far as I was able to go. Both were very friction free to me and easy to flex. Both had more rearward flex than I could use in the store anyway.
The one caveat is I ordered one size down from my foot size and both boots were too short and too tight in the toes. The shop person told me he sees people downsize for downhill boots, but not in these AT style boots. When I told him I ski a 29.5 downhill boot which I feel is one size too big, he said I will need to stay in that size for the AT boots. Both boots were a 28.5, so my toes were crunched and I had to overlook that in the fit.
The Slab has a touring sole and the XTD has a WTR sole. Both have pin inserts, obviously. I like the idea of WTR for binding compatibility. I want these boots to fit into the Tyrolia AAtack 13 bindings I have on my Liberty Origin 96 skis. I use them in the woods a lot and I like the idea of having light weight boots to use as well. I maybe wrong about that, but I will give it a try if possible. We did a test fit in the shop and it looks like neither sole will work with that binding. Both boots went in, but were jammed in the front under the AFD and probably won't release propperly . I do have skis with Salomon STH2 WTR bindings, so they may work for the XTD. I will flush that out. I also like the idea of unlocking the boots when I coach my Race team. I am standing on the course a lot in ski boots and my race Lange's get uncomfortable after a while. I doubt either sole will fit in my race ski bindings, there's no hope there.
Now the hard part, I have to make a decision and factor in price. I actually liked the Slab the best due to fit comfort and feel of flex. It has the more cushy liner. (Neither liners are as cushy as a downhill boot) I like the WTR sole of the XTD and in general its pretty similar to the Slab overall. It has greater forward ROM too. The shop will give me a small discount since I am buying the shift bindings from them. Both boots are 2019 models and both are the same $700 price with the discount. My hesitation is the Slab's are on sale online (last years model) for around $550, so a decent savings there. The $700 for the XTD's is a reasonable price, as they are not discounted much on line. I plan to buy from this shop since they have been working with me. My preference is the Slab at the $550 price, but the shop won't price match since its last years model, not this years. This years Slab is around $700 online, so really the shop is being fair and consistent with the market.
This is long winded, but I thought I might "share" for others going through the process and give some feedback on both boots. Any advise on the three boots or my approach is always appreciated.