Ted, there are very few almost universally agreed upon "maxims" here on APUG but one which almost qualifies for that accolade is D3200 processed in DDX but at the time for the next speed up. So at EI1600 process for the time allotted to 3200 in the Ilford dev time. Even on a very dull winter's day in the U.K. you should get 1/500th at EI1600 provided that the shoot doesn't stretch beyond mid afternoon. Unfortunately at this time of year, light loss accelerates almost exponentially in that last hour of daylight.
I found DDX to give me a lot less grain than ID11.
pentaxuser
The amazing thing is, this is exactly my experience as well!

