I have been building crankbaits for a while now but I don't really know how deep they can run. You can cast from your boat or dock but I don't think that gives you a real good idea. I was wondering if there is a general formula? I know that trolling should get you deeper than casting. I am only looking for estimates in both casting and trolling, its probably almost impossible to get an exact depth. Well maybe if you have scuba gear .
Thank you for any info