I’ve purchased a pump handle set up and have been looking at “dive chart info”. The best that I have come up with is a walleye chart/system that states a 50-50 ratio... of sorts. You let out 50’ and snap a weight on, then another 50’ and then the board. For every 1 oz of weight that equals 7’ of lure depth at 2.0 mph. Therefore, a 3 oz weight will get 21’ feet down. Does anyone have any opinions on this? Obviously an approximately 2.5 mph I will not see 7’ down, but I’d like to have a starting point....