I feel like they are just different cosmetically, get the pros instead, extra layer in the liner makes it nicer after 30+days of skiing. If they are different this year, it probably isn't a huge difference.
to thread creator, i seriously recommend getting full tilt boots. they are far more comfortable than my spks and they are way lighter. they are easier to put on, overall they are just better boots IMO.
ft are sort of finicky with fit. if you have a narrow foot, they are amazing, but for people like me, they don't work. I love the wide toebox of the spk, it's so dreamy.