I have extensive use with several Hilleberg tents, namely the Keron 3, the Nammatj 3 and the Staika, and so this post is mostly for Edward John and this comment—
I am reasonably tall, my initial concern with the sloping Nammatj is that my really thick winter sleeping bag is touching the sloping end and the ensuing condensation/frosting issues; this also happens with my current small tunnel tent, the Minaret
As mentioned, the biggest drawback to the Nammatj/Staika is the short foot ends with sloping inner walls. In a perfect world you will never touch your feet to the end wall of these tents—but in reality it’s a different story. Here’s how it works—
** You are inside the Nammatj or Staika atop a thick Exped downmat at 3.5 inches thick—or even a 2 inch thick Thermarest.
** You are inside a down bag with a 10 to 12 inch loft.
** So, your feet are not on the floor at the end of your tent but raised up off the floor atop a sleeping pad covered by a high loft bag. Added all up the footbox of your sleeping bag is now always touching the inner tent at the angled end.
** Inner tents often get wet with condensation, most esp in winter.
** Ergo your sleeping bag footbox gets wet.
** Hilleberg recognizes this problem and recommends placing a rain shell over the foot of your sleeping bag. Poor solution especially for a $800 to $1000 tent. And for that price do they include the necessary rain shell?? Nope.
** Here’s the rule: No part of your sleeping bag should touch the fabric of your inner tent (or single wall). Breaking this rule due to poor tent design is no big deal on a weekend trip—but a compromise on a 15 to 24 day trip with repeated sleeping bag moisture due to canopy contact.
People will often say, “This has never been a problem for me” but then they have never been backpacking day in and day out for weeks at a time and esp in winter.
** Or just get a tent with vertical foot walls like the Keron or Kaitum.
Regarding the Red label vs Black label choice—
I prefer the Black label tents for all of my solo trips, despite the extra weight. Beefier floors and kerlon and especially guyout tabs and zippers and all the rest. I want my investment to last as long as possible and to have the most robust Hilleberg I can get for those 10% times when hellstorms hit my camps.
And the worst winds and storms are not only in the winter but in July on mountain ridges and open balds during summer thunderstorms and microbursts.