We use DFP at VBM after switching from a hosted OpenX install. DFP suffers from the lag, but in my experience, OpenX also exhibited lag (though not to the same

We use DFP at VBM after switching from a hosted OpenX install. DFP suffers from the lag, but in my experience, OpenX also exhibited lag (though not to the same level.) It takes roughly 30 minutes to traffic ads, which is enough time to be a pain in the rear... especially if you mess up the ad code.