I'm working on this jointed lure.  I don't know if it'd be called a swim-bait, a wake-bait, or what exactly, but it didn't work.  I'm wondering what you think the problem is.  I have two ideas: 1) the flat cut front side of the joint is too wide, and therefore blocks the water from pushing against the second section. 2) the tail piece is catching water evenly, causing it to stabilize the second piece instead of causing it to move back and forth. I cut the end off the tail, but hav