9/17/2012 8:09 PM
David,
I have all but 4 sand based greens but I find a lot of organic matter in the upper 3 inches, so I remove the plugs, then blow off debris, then put fresh sand (straight) then drag. But I do that due to the amount of organic matter, it probably depends on what you want to achieve. (these greens were installed in 93 and I believe there were a few years they didn't get the core aerification they needed, or aerification at all)
Mel
Melvin H. Waldron III, CGCS, Horton Smith Golf Course, City of Springfield/Greene County MO