Do you guys use these. Seem like a pretty good idea so you don't lose expensive lures.

When I first started with crankbaits I started to buy these and I stopped losing so many darn lucky crafts.  For a Norman crank that only costs $4-$5 I won't bother, but for a $15-$20 lure, it's well worth it.

I have built up so much confidence and learned how to crankbait fish 5x faster by using these.

Now saying that, I went waaaaaaaaay overboard on buying these and outfitted about 30 crankbaits with them.  Now that I am good crankbait fishing, i hardly ever get hung up and don't need them.  After a while, you get good at avoiding hang ups...even if you are fishing the nasty stuff.  You just get a feel for it.

Tose things work, but they are pricey.