I've heard that, but on my two trips perch fishing, I was never able to detect any "irregularities". First time I got into fish right away, second time I got nothing. I think the moving until hitting fish suggestion is best.
I hung a pyramid sinker off the end and then put on two sideways 'T' shaped wires (designed for multirigging for crappie) about 18 and 30 inches up. I really liked my 10 1/2 foot rod for casting compared to the 8 1/2 footer on the first trip.
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This is what I use for rigging, hasn't let me down yet.