I have not tried the planer board system the OP shows, but have tried and use these.
http://www.crappiereaper.com/index.html
Well, I have used the original makers boards ( a Mr Bishop) but he is no longer making the boards but someone else is (Jeff Langley), and are exact copies of the original. Jeff talked to Mr. Bishop at length about using his design and apparently has no issues.
I have used Mr. Bishops boards for about two yrs, and are very simple to use, and can be used to pull jigs or crankbaits for crappies. These boards work on the same principle, you can run 2/3/4 rods of each side and cover a lot more water trolling for crappie.
I have no interest in the crappie reaper boards production, and just throwing this out there as an alternative for people.