If you are running speeds 2.5-2.7 give this site a try. Most other weight dive curves stop at 2.0 mph and that is a big difference compared to 2.7 mph. Just take your crankbait depth from its dive curve and add that depth to the depth you get from this dive curve at your 60, 70, and 80’ leads. Just remember this just gets you a ballpark number, definitely not an exact depth. When I run weight I make sure to make a lot of turns.
http://liveprecise.com/tdepy.html