i usually hunt in auto plus 3 but if i get an iffy signal i have been switching to manual sensitivity using the left and right hand cursors in the bottom left hand corner with great success i am simply using it as a magnifying glass so to speak to give me a better idea and it is working very well i also use the up and down cursors to increase decrease the sensitivity and it is quick and not time consuming just thought i would liike to share this with you guys