POTAIRE, im no grand jig thrower but i personally test the bottom by going to deep and then bringing it up as i need, say if i using a slip float i slide the stopper up 4-6 inches at a time and then see if im still hanging up if not then i will go down a lil at a time so as to not get to far off the bottom, like i said im not a very avid jig and bobber guy but im gonna start tying my own jigs this year..so how ya been doing on the carbon for steelies this year? ***schitzo**