My experience, both street and track, YMMV:

If they stick out too far, they can grab in a slide.

Hollow sliders with the bolt in the center have a greater tendency to break.

Cheap sliders from eBay = cheap steel and cheap plastics. Bend and break.

No-cuts tend to bend and may cause more damage.

Now, I'm not saying you can buy cheap 'ole sliders and they will always fail. They may work out for you depending on the crash. I have seen cheap sliders work, and have seen them fail, but I've never seen a Woodcraft fail.

I have Woodcraft and Vortex. Woodcraft on the trackbike and they have performed great in actual testing.