I have a Vibraprobe and It works quite well but it does affect the detector and vice versa. They need to be kept at least 5' apart or they will bounce signals back and forth. Or better yet, disconnect the battery in the Vibraprobe until needed.
Well I had a VibraProbe but it doesn't float and today while detecting at a local lake I reached down to get it and it was gone. I looked and looked but was unable to find it. I guess I will have to buy another one. I really loved it because it was water proof.