S
New a fella that bought those spindles only thing he noticed was his wallet was lighter.
In a lot of snow conditions I'd agree you probably wouldn't notice. If you spend any time on sleds with custom suspension and then hop on your buddy's stock sled to help him get unstuck you'll notice right away. Is the difference huge? No, but it is undeniably better. It's up to the rider to determine if the investment is worthwhile.