Has anybody ever used them or heard anything good or bad about them? Thanks in advance..

Just put them on some older carbons I had. I used the 2" Blazers. They seem to be just fine. I've shot them about 30 times per arrow and seem to be holding up great. It took a little experimentation to get the water right, but after that it was fine. A little tip is to use a thermos to keep your water in. It keeps it hot and it is deep enough to get the whole thing submerged. Good luck.

Thanks for the reply and the tip...

I used them and they worked just fine at first. However, my Whisker Biscuit rest started to tear the vanes off in about 10-20 shots. Never used them again.

I've used the extreme archery Shrink Fletch without any problems and I have 50 + shots thru a Whisker Biscuit.

I have them along with me in the woods and at camp. I carry them in case I need a quick fix...I have shot them and they work fine.