The bringing your base edge into the ptex seems dubious to me. Your making less surface area which could be faster given a perfect flat surface. You're also increasing the tendency of the ski to wobble. Introducing side to side instability could slow you more than the reduced surface friction. Don't know. I would bet this has been tested fairly extensively.
Maybe
@Primoz knows what they do for base tuning and whether they bring the base bevel into the ptex. If it was really faster, why not just design the ski base this way for speed skis? Landing jumps - not so good.
Why don't you just increase the bevel of the metal? Downhill uses bevels well beyond 1 degree.
JEFFREY MARLOW
SCIENCE 02.07.14
HOW SCIENCE TURNED A STRUGGLING PRO SKIER INTO AN OLYMPIC MEDAL CONTENDER
"He spends more time in the wind tunnels than anyone else. And he’s good at it. It turns out that standing still is a skill that is highly amenable to training. With enough strength, body control, and concentration you can learn how to be a statue in a hurricane. Then there are the subtler lessons. For example, the wind tunnel sessions helped Nyman discover that keeping his hands forward and his elbows together consistently reduces drag. In this position, wind slams into Nyman’s chest and funnels down between his legs; his arms and hands are essentially invisible, generating no additional resistance."
https://www.wired.com/2014/02/ski-run-nyman-sochi-olympics/
It's hard to interpret the above. The other style seems to be keeping elbows in front of knees or legs.
The description doesn't match the photos.
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It's likely that less than five minutes talking with Daron or any of these guys would settle the issues.
Doing it in a course is another matter, and the best tucker/glider isn't necessarily the fastest. That's also why Hermann Maier preferred super g. "No boring gliding sections" as he said.
A study-
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https://iopscience.iop.org/article/10.1088/1361-6404/38/2/024002/pdf