Road Racing - Which UD balancer for HPDE's? I did search

I did a search, there aren't many posts about UD pulleys in the RR section.

Any recommendations? Which one is best engineered and takes into consideration that the pulley has more function than just to drive the accessories.

From what I've read it seems that the SLP, Powerbond, and ATI pulleys are the best.

There is only one choice for road racing, the ATI with the softer rubber.
It's what Katech uses and that's all I needed to know.

There is only one choice for road racing, the ATI with the softer rubber.
It's what Katech uses and that's all I needed to know.

Good to know. thanks