What crank bait have you used for trolling for crappie?

[cousinlll]

I bought the Person Trolling book years ago just before the app was available.  Pretty good resource. 

I find it much easier to push from the front of boat than pulling.  When first using cranks, I used metered braid that was colored in 4 different colors with each color being about 25' in length.  You use that colors to determine how much line you have out when pulling cranks.  Use the depth chart to determine your lures running depth.
https://www.cabelas.com/product/PowerPro-Depth-Hunter-Metered-Braid/1185653.uts

Also have had better luck by dropping my kicker & trolling at higher speeds like +2 mph