Anyone ever use these? If so, do they work well?

They work very well but I've only tried the size #2 and the 1/0 so far.

I'm interested in these weedguards too, they may work out very well for my top hook swimbaits. Just need more reviews or real wold experience with them.

These look interesting, never heard of them before.  I wonder how well the part that clips on the eye holds up while fighting the fish.

Looks to me like the weedguard is lost every time a fish is caught. Id go through 5 packs a day 

You won't loose weed guards after every fish but it does happen but all you need to do is look at the water because they float right up to the surface if they do come off. The design is simple and it works better than I thought it would, I now throw my hair jigs around brush piles. Is it 100%, no, nothing is, you will still have times when the line ends up wrapping around a limb or you pull hard and actually set the hook on a branch, stuff happens but it is a decent weed guard and just as effective, if not more, than a traditional fiber weed guard.

You won't loose weed guards after every fish but it does happen but all you need to do is look at the water because they float right up to the surface if they do come off. The design is simple and it works better than I thought it would, I now throw my hair jigs around brush piles. Is it 100%, no, nothing is, you will still have times when the line ends up wrapping around a limb or you pull hard and actually set the hook on a branch, stuff happens but it is a decent weed guard and just as effective, if not more, than a traditional fiber weed guard.

Thanks for the reply. I was wondering about them before this thread .