Since Randy Fromm isn't sitting on top of your chassis, I would take his suggestions as advice, not law, no matter how much he screams. When I had a WG monitor do the tick-tick-tick, I called WG Tech support and they had me changing transistors, coils, diodes, resistors...... and after all that it still ticked! I finally asked if changing some caps might help and they said it was worth a try. Changed out the caps in the power supply and it worked!
I have also had a monitor with a horizontal line, indicating deflection failure. A cap kit didn't fix it. The problem was that it worked on a different tube before I pulled it for mine. Everyone swore up and down it was a chassis problem. Turned out it was the yoke, even though several highly-respected monitor gurus assured me there was NO WAY the yoke could be the problem.
Ten bucks in caps and an hour of your time (if you're not used to doing it) is a small price to pay to rule this out... and will help your monitor look better and last longer when it is fixed.....