I’m off to my dealer tomorrow about the £1100 price drop on the SportLine Plus 80x I ordered. As you say from what I can see online there doesn’t seem much difference in snow performance with the x version so I may ask if I can just fully cancel and re-order the 80, that’ll be £1500 cheaper than my current order.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!