I don't want lower contrast, though. And like I said, I don't mind some grain, just so long as it isn't over the top. I know some people like fine grained films, but if it were my thing, I'd probably shoot Delta or Tmax instead. Besides, I have a near full bottle of DD-X that I'd rather not waste .
If agitation is the problem, then how often should I do? 4x in 10 seconds every minute like I was doing at the very beginning?