I have to say, after almost six months or so now, making all my live rock into pillars was the best thing I ever did. I get such good water flow in and around the rocks, that there is no shedding. Live rock in my old tank shed detritus for a good year and a half, since in was in one big pile. Before I do a water change I would use a small powerhead to blow detritus off the rocks in those really hard to get to areas. Guess what, last couple times, nothing came out. Nothing.
And I've all but forgotten the days of placing a coral, accidentally shifting the rocks, and having to re-aquascape half the tank. And an unexpected bonus...the acrylic rod is somewhat flexible, so I can actually move the pillars slightly if need be.