In the past there was enough fruit to go around, but lately it's been pretty blown out.
That said, it's worth the trip if you want a chance at comparing fruit from the collection regardless of what's ripe at the time, as that window where you can fairly compare a large number of cultivars simultaneously is so fleeting.
Otherwise you can ask people who have gone in the past for their notes.
If you have an established flavor profile preference (you know what taste categories spark your interest) you may have an easier time selecting what you want by asking members of this forum.
Most of the time you go to the SCREC Cheri tasting, you will find that everyone is just talking about El Bumpo though.