For long line trolling I use any where frrom 3 to 6 rods maybe more depending on how good hey are biting I use a t bar system out each side in the front with 3 holders on each one and 4 out the back i use 12ft ,10ft and 8ft rods out each side i use 4lb line and this varies on which lake i am fishing douglas i use 4lb i troll at a speed of .8 to 1.0 with a gps rigged with 2 1/16 oz flies most of the time this will get you to approx 13 ft troll along the channle breaks in major creeks. hope his helps. it works for me most of the time.Mayebe some one else can help on the bobber fishing I can do it but not my preferred method
Speck
Real men troll for crappie (Here Fishy Fishy !)