I remember when Balata 90's were the best.  They would spin so hard, but one skip off a path, rock, or tree and the spin was all wrong.  You could also make them "smile" if you caught it a little thin.  

When the Professional 90 came out I was immediately in love.  I don't know when that was, but I couldn't see Touring Pros ordering up Balatas when you could play the Professional... 

Did Jorgensen say why they preferred the Balata? 

I worked at TPC Jasna Polana in Princeton, NJ until 2001.  The Instinet Classic was held there that year (and 2 years prior).  During that event, I had several Senior Pros request the balata balls for practice sessions.  They loved them!