I posted back in August at the annual USDA fig tasting at Wolfskill (not UC Davis, but on property leased from UC Davis....), that the research director (aka "head guy") John Preece specifically said that they provide material to researchers and that includes folks carrying out trials in their back yard, wink wink, etc. Those were not his exact words (I posted an exact quote, go search my posts if desired), but that's the essence of what he said.
Last weekend while at the pomegranate and persimmon tasting I asked him a question about the cut-off date being moved from 12/1 to 11/1 starting in 2013. He said that they were also going to make a change that they only allowed orders to be placed during a window period (i.e., 3 months) instead of year-round as many people request the same thing more than once in the same season and it takes them more time sorting through all of that.