My sincere opinion is that your questions should be directly refered to the dowsers forum in TNET site. The geotech site has no knowledge or experience in this subject and as result, no dowser is an active member of this group. On the dowsers forum in TNET, on the other hand, you will have plenty of info directly from them.
http://forum.treasurenet.com/index.p...0a&board=200.0
However I could try to share some info with you although I'm not a dowser and I'm not familiar with the Ominitron either.
I own a rangertell examiner which is an extremely valuable tool to me. With it I was able to track 2 treasure sites so far which only closer, our team's all electronic LRLs started to respond. I will not start a debate whether the RT unit is a dowsing device or not. This will take (as always) to nowhere and I trully don't care. I really don't know if the omnitron is similar to the Examiner, although both employ swivel rods (antennas), in the case of the examiner, just one, and they deal with frequencies.
I had never practiced dowsing before, but had no difficulties in dealing with the Examiner.
You may choose to consider my opinions and report or not. It's up to you. I just wanted to help and offer you some info.
I belong to a group of very few here who abandoned Thunting with regular metal detectors a long time, migrating to LRLs. And before you mention that LRLs are no garantee of finding gold, also regular MDs are not. A very special member of this closed group here also spent a long time with an ordinary MD and never found anything. Only did when started to work with a LRL.
So, let's put this way: I might be suspicious to talk about LRLs because I'm an active proponent. It works and always worked for me. Don't know about you.
Hope this helps in a way or another. Best of luck.