I think just cherimoya for the tasting. One year they had atemoyas for people to take home, and that's when I heard about the good African pride.
Before they started doing tastings in Irvine, a couple of CRFG chapters used to get fruits from there and do chapter tastings. I tasted several varieties of atemoya that year and none compared to cherimoyas. They have a later season so it may not be a fair comparison. I might have a few photos. Anyway, word got out about the popularity of the event and the people in Irvine decided they would do it themselves and it'd be a good year to year survey of variety rankings and a little fundraiser for the research station.
If you didn't already know, bring $10 or $20 in case they have extra fruit you can take home. Maybe a little extra in case the price changed. Some of that fruit might not ripen correctly at home, so it's a good deal for the weight, but sometimes not.