Am waiting for my new cz-21 to arrive and am curious to see how it compares to my cz-70 Pro that has been my trusty companion for quite a few years. Same frequencies, but one tone less for the cz-21. If they compare similarly, I will be pleasantly surprised! Although the cz 70 Pro is water resistant, I've always been concerned about losing my balance and taking the "Nestea plunge" while shallow water hunting! I live in northern Michigan, so my interests include fresh water beaches and old homesteads and logging camps. There are so many lakes, including Lk. Michigan close by, so my goal is to get "out there" in my neoprene waders and find some treasures among the clads. I hope to post some success stories this year!!! All the best!!!