I'm getting a wicked hard spot/pressure point where the Achilles meets the heel when walking uphill in these boots. It feels like a screwdriver jamming into my skin back there. Anyone got any boot tricks to help with this? Will it go away with break in? They are great boots in every other respect, maybe they just don't fit my heel properly and that's that.

I think I've finally got my Mont Blanc dialed in regarding my heel seating properly: I double sock, except on the outer sock I cut the tow box out just behind the first metatarsal head (Big toe knuckle). This set up really locks my heel in well.

The heel pressure I was feeling in my Summits have all but gone away. I achieved the best fit by tinkering around with socks, insoles and lacing. In the end, I'm using wool liners and light to medium weight wool sock, orange superfeet and lacing that I would describe this way: From the Toe to the nylon loop, I laced the boots really loosely. I'm lacing the "top half" of the boot tight. This combination of socks, insoles and lacing has given me the best comfort on long, up-hill slogs.

I get some discomfort in my Summits as well. I don't know if my heel is seated too much, or not enough. If I lace them up tight and push (or pull) the heel down into the heel cup, then I get the worst discomfort. If you think about the flexing action; with you heel pushed way down deep in the heel cup, and the boot flexing while stepping into an incline, the boots' tendency is to push or bury the heel hard into the heel cup. I have tried this with pretty good results: lace a bit more loosely than normal, use liner and hiking/trekking sock. I feel heel slip with this method, but at least my heel isn't being jammed into the hard cup. On descents, lace tighter so foot will not slip forward. My boot is still relatively new and seems to be getting better .. break in!

It sounds like your heel is not seated enough in the boot. The heel is lifting up. 1) Try an after market footbed. 2) Tighten your laces a little more. 3) Double up on the socks. I have the same problem as you do in regards to heel lifting. Experiment with different combo's of the above-mentioned.

Had a similar problem in the La Sportiva Nepals this winter. I kept going thinking it would break in but wound up getting a bad case of tendonitis starting in early Jan. I took Rx anti-inflammatory drugs, wore flip flops al winter and iced every day for 8 weeks. I still can't wear boots or most shoes. May want to look at another boot