Which groove to lock your bindings, upper, lower or both are ok?

In this examle upper groove used:

Tried few brands (even googled least itchy wool), also tried putting it into the freezer first. Nothing helps, cannot stand it on my upper body next to my skin - but I have number of smartwool/merino bottoms and I really like it. If not for that I'd be using light, say 150 smartwool shirt as base la...

1 inch forward of BP it is
Thank you.

I too sweat a lot. "Terramar Men's Thermolator Climasense 4-Way Stretch Brushed Crew Neck Top" as base layer works for me - often I carry extra one and change when say, get to the top after a hike (cannot stand any type of wool next to my skin). Then ArcTeryx Atom LT vest - for cross country often i...

I think mine are 2022 model, made in Czech Republic. Yes, Xplore or NNN BC bindings on Balance Point, I assume. Same with 3Pin bindings? or mount slightly forward since with 3Pin my foot is about 2-3cm back comparing to NNN BC? Also, any riser? Voile 2cm riser seems too much - 1cm on the other hand ...

Thank you Lilcliffy. They are 184cm long (straight tape pull). Chord Center falls 1cm (exactly 11.5mm) behind Balance Point mark. Tip rocker is around 26cm. Interestingly, placing ball of the foot in the middle of running surface puts 3-pin line 3cm behind the BP mark – but that’s not including tip ...

GoreTex Patch - outside or inside

like this "GEAR AID Tenacious Tape GORE-TEX Fabric Patches for Jacket Repair, Black, Round and Rectangle" from am-zon.

Hello, Newbie here – alpine skier but new to cross country skiing. I have one pair of 205cm skis with NNN BC bindings mounted with BP method (nnn bc boot bar over ski balance point) – for flats (and small hills). Getting second pair of skis for more hilly terrain (not up/down AT style) - Fischer Tra...