Hello changed,
I’m a big 75 mm guy, but I would really recommend you consider NNN-BC or Xplore. The boot selection would be better.
Having said that, if you are going 75 mm I strongly suggest you purchase a binding that offers the option of cable attachment. A cable makes the the longitudinal connection of the boot to the ski much stiffer. That is quite beneficial making turns going downhill. When going uphill or across flats skiing without a cable is much more efficient.
The Voile 3-pin Cable is durable binding, and the cable is very easy to attach and detach. The Rottefella Super Telemark is also a very good binding. The duckbill fits most leather boots better. The cable offers much better downhill support. It is difficult to quickly attach and detach from the binding. I mounted mine on a Voile 10 mm riser, so I can attach the heel throw to the heel riser when I don’t want the heel throw attached to the boot. That is my preferred 75 mm leather boot binding configuration.
As for a good leather boot. The first thing to remember is the boot must fit your foot. I own two leather boots, an old leather UK Army boot made by Alico, and an Alaska 75 mm boot. The Alaska is soft, it kicks and glides very well. Skiing downhill the Rotte cable stiffens it up nicely, but if I’m planning on a downhill oriented day, and the snow isn’t really nice, I’ll be wearing the stiffer Alico boot. The Alaska isn’t for wider, high volume feet. It fits my feet like custom made. There are countless stories of catastrophic duckbill failures of the Alaska 75. I have been fortunate. I like the boot as part of my two boot leather boot quiver.
When I think of downhill leather 75 mm boots the Fischer Transnordic 75 comes to mind immediately. The reviews I have read, from sources I consider reliable, state that it is supportive downhill boot. I have not heard anything in regards to boot sole failure. I have read a couple reports complaining about the fit. The Transnordic upper has plastic stiffeners sewed in internally. Some people find them uncomfortable. I find the fact that several lightly used Transnordic boots find their way onto the for sale forum every year since the have been introduced. I have not been convinced by reviews to consider other Fischer or Rossignol leather boots. The boot I would purchase if my Alaska failed is an Alico sold by Altai Skis or similar from Telemark Pyrenees:
https://us-store.altaiskis.com/product/ ... -3-models/
https://www.telemark-pyrenees.com/produ ... rrency=USD
I didn’t see the Alico boot currently on the Telemark Pyrenees website, but I did see a Crispi Svartisen. It is reported to ski well. There are mixed reviews of the exoskeleton fit. I would highly recommend contacting Fey Brothers in New Hampshire if you are interested in that boot.
https://aspinockwoods.com/
I have done business several times with Fey Brothers. I find them to be knowledgeable, and the customer service to be excellent.
In regards to the Alico boots on the Altai site, my interest would be in one of the two more heavy duty leather boots.
In closing, I hope you look at the Telemark Pyrenees site. I would draw you attention to the greater options in NNN-BC and Xplore boots. That is the reason for my original suggestion.
Good luck and best wishes for your Nordic backcountry touring and downhilling next season,
Bob