Small southern lakes heat up so i try to keep mine(line lengths) above what i call dead water thats deep and low on oxygen.And as far reaching your hand in the water to untangle a jug--I "wouldnt recommend it" and if you would have seen some of the stuff ive caught on a jug line ,you may just think its a real bad ideal.Cause alligators,huge logger head turtles,and snakes aint all that un-common.