[Edit: And Roelant chimed in! Before I even posted this.. but FWIW]
Your post reminded me of this thread about the waxless Nansens:
viewtopic.php?f=19&t=2997
@Roelant had this to say:
I love the design, stability, predictability and flex pattern of the Nansens. I think they are perfect touring skis for my use and I cannot fault them.Except for the grip.
Its been steadily cold here and we got 50 cm of fresh snow the past week. When I could get time to ski I have been alternating between the waxable Falketind 62s and the waxless Nansens.
Although I got the FT62s to work good for me in the first and great in the second outing, with the Nansen Waxless I achieve good grip results only when I wax a layer of hot polar all the way to the tip and appropriate wax of the day forwards from the waxless pattern in a length of about 45 cm. I do find the waxless pattern to be relatively silent.
Here is the catch though. Isn't it silly to use a waxless to have grip when conditions are too warm to wax effectively, only to find that you're only really happy with the grip when you can complement it with wax anyways?
Some here seem happier with the grip offered by these skis than me. I noticed that they usually seem to have shorter skis ie. 185 cm for instance. The extra 20cm in my 205s is only extra glide zone and therefore there is relatively less grip zone for a heavier skier like myself. I also wonder if such a short grip zone is best on a ski with a long Nordic rocker sich that the grip zone is a higher proportion of the ski base touching the snow.
The bottom line is, I now regret selling the waxable Nansens earlier. Looking at my priorities, for the next 10 years I'll probably be touring in my back yard, or with a heavy pack, or with a Pulk or with a kid in tow. When wax is not working the glide penalty from an x skin won't be an issue.
Roelant of course could chime in speaking for himself! But I thought it was interesting that he refers to himself as a "heavier skier". Presumably weight-matched to the correct length (205cm?) of Nansen? Yet I experience the same issues with my 195cm Ingstad BC waxless and I think I am more like your wife—i.e. a bit light at 68kg for that length—and over the past two seasons I've been blaming my lack of grip on this. But no matter the snow conditions, even when ideal for fishscales in theory, I cannot seem to get any functional grip even in relatively flat terrain. The Ingstads are amazing and I wanted 195s for the extra flotation for long distance tours in deep snow. But the waxless is utterly useless. And if you have to wax your waxless skis to literally be able to ski even on flat terrain, why not just have waxable bases? (Hence why I took @Woodserson up on his magnanimous offer of used 195cm Ingstad wax!)
It seems like there are folks out there who have no complaints about their waxless Asnes ski (grip). But I wonder if it's like goldilocks... all the variables have to be juuuuuuuust right. Less forgiving than other waxless skis out there.
A couple things. Roelant writes: "I also wonder if such a short grip zone is best on a ski with a long Nordic rocker such that the grip zone is a higher proportion of the ski base touching the snow."
The Ingstad waxless pattern is 53 cm long for a 195cm ski. It does have a Nordic rocker though, if we're talking about proportions of glide zone to grip zone.
My Madshus Epochs, which climb like a dream!, are 185cm long (and I am also too light in theory for these, though not as underweight as I am for the 195cm Ingstads) and the waxless pattern is 79 cm long.
Not taking into account the Nordic Rocker, this means the grip zone is 27% of the base on the Ingstad.
The grip zone is 43% of the base on the Epochs.
And the Epochs are, of course, a bit wider underfoot than the Ingstads, 68mm vs 62mm.
And they are softer flexing. Etcetcetc. It's not apples to apples.
Nevertheless, I am wondering if 27% just makes for a finicky waxless situation.
Wish it wasn't so expensive to experiment! I'd sure like to try a 175cm waxless Ingstad. Maybe I'd have grip out the wazoo. But then, what about flotation? What about glide? Am I doomed to short skis?
Maybe those "women's specific" Asnes skis should have differences that are more than graphics-deep. Could they perhaps be tuned so that lighter skiers could still ski longer skis without paying penalties like: no grip?
On the other hand, even some "heavier skiers" out there seem less than satisfied with the Asnes waxless pattern... so there's more to it, surely.
Oh and here we go, just found this tidbit from @Cannatonic from a thread on the MT51s.
viewtopic.php?t=2450
Been skiing the MT51's more....the fishscale section is too short on the 205's. I've been out a few times where the traction wasn't nearly good enough to ski normally....just kick & glide, not even climbing uphill. I still like the skis, but I've permanently attached the 30mm mohair skin to them. That works great & gives me the traction I need in wet or icy snow.
I suspect the scales would be sufficient in dry powder, but I use wax skis for that. The skin works great, if there are issues with the skin I have the scales for backup. But I'd like to see the waxless pattern extended on these. Especially on the Ingstad's & other wider models that would be good for telemark laps on spring snow.
Anyway. Gotta pull myself up out of this rabbithole now!
Peace!