Has anyone fed or tried Cavalor or Hallway feeds?

Looking at even Hallways Fibrenergy and Stamm 30 for our ranch horses, Cavalor SuperForce for running season, Fifty-Fifty for my colts, and FiberForce?

I would go with Hallway for both! Try Protenza or Race 13 when running!

IMO, Cavalor is expensive. We only have one dealer here. 

As for Hallway Feeds, we use the Race13 for the racehorses. My gelding with ulcers gets 4 lbs and my very easy keeper gets 3 lbs.  It is a very good quality feed for the price.

I've used their ration balancer (Stamm 30) when I had fewer horses which were being boarded. It was also a very good quality for the price.

The Stamm 30 is what I'm looking at for our basic ranch horses and my easy keeper colts! So that's good to hear!