I recently put a point 1 antenna on my rig, running 2 gen 2's a 12 t and 10 on the front, i calibrated the front depth finder with the trolling motor as suggested, after it read cal OK, my t 12 in-dash when i'm running the chart i can't get my pointer to go the right direction, never had this problem before an I've tried course up heading up every combination available, front is OK, my units are networked on chart so do i have to also calibrate the in=dash? tried several times but it timed out, had bad rollers on the lake an was hard to keep between 2 an 3 degrees, my pointer is either side ways are backward when running, our lake is low and scary being confused especially at night.. any suggestions appreciated...