What type of equipment do you use to mow and groom the field?
Infield is mowed by a reel mower, usually double pass. Outfield is mowed by a triple rotary Turf Blazer. Nothing special on the infield except screen drag, nail spike, etc.
Also, what is the brand of clay is that? I like the color of it over the really really red stuff.
I don't know the brand but it's actually a crushed volcanic cinder with a small amount of clay combination. Comes out of Red Bluff, CA I think and is only delivered by belly dump if I remember correctly. It plays hell on certain sprinkler models.