I ran the 1.25 Shockwave Polaris track on my 03PROX7.
It is a Very good track.
It is a hard durameter and is very durable, even in low snow conditions it was perfect after a 3000 miles....No lug or any other damage.
It really excels at off trail and or loose snow conditions and really shovels snow!
It is awesome on hardpack until it gets like concrete or icy....then it sit's too far off the snow and doesn't penetrate.
It is not the best for top speed. It is fairly light although about 2 lbs more than the Ripsaw.
I saw about 4mph off of the original 1in Polaris track under similar conditions.
You can feel it "Fanning" in the tunnel at top speed
So to sum up...
I think it is a superior track in the loose and off trail and when the snow is plentiful than the Ripsaw.
It is a proven durable track.
It does shave a bit of top speed...more so than the Ripsaw.
It is not the best on really hardpack and or icy trails. Ripsaw is better here.