Gen 2 Simmons
I've has Simmons on my last 4 sleds. They do require more steering effort but track & float way better than stock.
The stock skis on my '07 Attack are awful. Too narrow to float, track just awful, and have a too steep angle of attack in my opinion. In addition, I wore out the original carbides in 600 miles!
Simmons float well in the powder and the lower angle of attack throw less snow at you and help keep the sled flatter. You just have to be careful not to go under, rather than over some low stuff in the trails.
They also come with two sets of mounting holes. One for reduced steering effort and one that will lessen the tracking more but steer harder. Your choice.
Mr. Simmons tried to talk me into Gen2. If I lived out West and rode in powder all the time, I'd do it. However, they are 10 inches wide and would be a problem in a side by side trailer or meeting another sled on a narrow trail. The Gen1 are 6 inches wide.
Just my opinion.
Tim Caldwell
Old Town, Maine