Pretty much dead idle but also I do run in big S patterns a lot as well and just like with U rigs stop and go some too and if I have an extra person in the boat we will move them up and down some as well. I have some of the Roamer releases and you can tighten them down enough to run U Rigs on the riggers from what Capt Mack Farr told.
Also if Norman has trees in it try and run just over the tree tops but be careful not to hand your downrigger ball in the trees, that is a CLUSTER
I have not tried that yet, in fact got a couple of Cannon Uni Troll 10's for sale(manual). I just bought(or swapped with a client) 2 Cannon mag 10 electrics.