those looking for ball information... direct from FIRST procurement folks:
the "official tournament" softballs are optic yellow, cork core, 11", 0.44 COR, 375 lb compression from Worth, part # YWCS11. It is labeled as a "Retail recreational softball"
The field BOM will be updated accordingly.
However, nearly any 11" circumference softball will do for testing and practice. Also, please remember that there may be slight variances in softballs, even from ball to ball (as well as other field components), and teams need to design to accommodate this.
In the future, any FVC team desiring an official answers needs to use the FVC Q&A as directed in the game manual. It's located here:
http://forums.usfirst.org/forumdisplay.php?f=35