Vodkaman, you're talking to one of the guys that builds by trial and error or sometimes lots of errors. I'm not the guy for test and measurements, I wormed out of physics class for human biology. That's why I asked the question here. I know from the number of baits I've tested there are differences in the rise rates between cold and warm water. From my limited experience baits rise slower in cold water and that's what I'm trying to figure out. Bobp I only use braid and that line floats. I do thank you fellas for your posts and wisdom. I think I'll just build baits and not worry about what makes them work, just as long as they work.