all the more reason to go marcum. I had a fl 8 and before my marcum and fished with both of them for awhile. Never had any problems. I sold the fl 8 to my buddy and we fish together a lot. He says he gets some interference but I don't think its anything to keep you from fishing. I haven't seem a real problem unless we are right on top of each other. The marcum has great interference rejection. To be honest interference really isn't that big of a deal, annoying yes, but hardly enough to get in a fight over.