I, by no means, am not an expert...
But when I was a kid - we went fishing every spring for crappie with my grandparents - and we trolled (that's all we did)...
We would simply cast out, let some pulls of line out, and start trolling. We would vary our trolling speed and distance from the lake as we tried to find the crappie...and we would always pay attention to how many pulls we were, long/short cast, and where, in relation to the shore, we were when the bites occurred...
We could get on them pretty quickly - and once we found good areas, we'd troll back and forth over them until the bite slowed, and would move on.
Wind didn't really matter, line was either 6 or 8 lb, and we usually used 1/8 or 1/16 oz. roadrunners.
hope this helps - i'm sure you'll get lots more info than what i can provide!