What the heck is Berry/Gasmeyer using in Delaware

[Kirby's Ace]

Horses seem to grow another lung! Never tired!

Gotta be on the front.

Just like Glassmeyers! Definitely using the same magic potion.

 

[Harness racer]

He must be clean.  Every time I mention it I’m called a hater.  Guy has won way above average for a long time and no one cares.  Was just suspended last year.

[Harness racer]

How people let sprocket go off 8-1 last night is beyond me.  I wish I’d bet enough to brag about.  Decent little hit, but not what it should’ve been. Kept wondering if I’m missing something.  Sprocket was unstoppable a few years ago and now they are dating someone to claim him at that level.