Once you start hitting Fair Haven the temp goes deeper as the thermal starts to set up(below 100 FOW) you should be able to get to those depths with the older riggers. I ran those for years and ran down to 120 to 140 granted you have out at least 170 + feet of rigger cable and 13 lb weights to get these depths but it's not impossible.I don't think the older riggers would take any heaver weights for long periods of time the new ones are made for the heaver weights. I don't know what the depths are when the temp sets up out west of Fair Haven but The last couple of years at the bar in May I was down 100 feet picking up fish and last year they were even deeper for a while then the temp sets up and they were fishing is shallower water. It all depends on what type of spring we get for the depths. I am by no means an expert here but just saying what I have been thru.