HeluvaSkier wrote: 1.8x-2.0x body weight squat and 2.3x-2.5x body weight dead lift or higher, if-possible.
Those numbers are almost comical to me at my age (61) and my body type. Admittedly I was never going to be a WC ski racer and 30 years + of endurance athletics just lessens ones fast twitch. And again at my age I would never go near trying to do anything with weights anything close to what you are suggesting (that would be squats at 360 lbs and deadlifts at 450 lbs for me). My back would go out and possibly do serious ligament damage even if I worked up to it over many months (and I would never get there anyway).
But, you can ski at a high level without coming anywhere near these types of weights. HH doesn't lift anywhere near this level (now, maybe never) and still slays it. Again, I'm not talking about racing at a high level, but rather black level recreational, all mountain and bump skiing.
As has been mentioned before in this thread, as one gets older, less is more. Weight is not your friend, and lifting big weight tends to add weight especially as we age.