Can’t speak to the Elans as I’ve never had the chance to demo any of them. That said, when I have tried to tip and carve my Billygoats with the same initiation as my Renoun Z90’s, weird things happen, I think it’s the different tip geomentry tends to make the tips diverge, especially as I get the inside ski on edge, the outside ski just wants to keep going the direction it was going. OTOH if I just steer with my feet a bit and pressure the outside ski a little more, without worrying so much about early edge engagement, I can feel the edge grip underfoot really well on both skis. It requires a bit more patience. The BG’s have a much longer turning radius anyway, so that’s part of the equation.For me, the ON3P Billy Goats have a different feel and dynamic from the Elans, not sure why. I like the Billy Goats a lot, am always almost buying them. I really don't notice the different symmetry there, maybe because to me it feels so dialed in, integrated. I just notice the Billy Goats work, in both soft snow and on soft groomers.
So, not to digress too much, I think there is a point to having asymmetrical skis, depending on how well they are designed for the use they’re intended, rather than “all good” or “all bad.”