I don't pre mark the line if that is your question... I do two things (sometimes) one is when I catcha fish I mark the line in front of the reel to show where I need to lock the reel on the next set. Secondly I measure my line using my fishing pole (only takes a couple of seconds using 12' jig poles. Other times which is most of the time... I fish in a 20' boat and I cast ahead, from the rear of the boat, then let it drift back... it helps to estimate the length of line, but also gives falling jigs and such time to get down to the desiered depth (in freefall rather than being pulled) the last method is the one I use most, because it is easier for me and fast... oh yeh I use the rod technique when spider rig'n... Happy Fish'n
This only my opinion, but nothing you can say will change my mind. That makes it a FACT.
Today is a Blessed Day and a Prosperous Day