Four styles of ski used by Yamaha over the last 10 or so years.
1) steel, like the ones you have.
2) Plastic GYT skis with thick cast aluminum shoe. A direct replacement for the steel.
3) Plastic ski with Stamped aluminum shoe. The bolt hole in these style of skis is approx. 1" shorter than the steel/gyt. Meaning the sled will sit 1 " lower.
4) Current shoeless design, also the same hieght and issues as #3. There are differing keel depths available as well.
You may need a longer bolt for some of these over another and #4 has some bushings you need for the carbide holes. A used set would probably come with those but be sure to find out.
I have driven 1,2 and 4 and all darted to a certain extent, but I would have to say #2 was the best for non-darting. The pair I had were pretty worn though and have since been permently retired.
Hope this helped some.
