All of the info on the Bull-ympics events are up on the website - http://www.bullympics.com
This year, we did a single bar that was raised in approximately 1 inch incriments. this caused trouble for the dogs once the jump got high, as they stopped "seeing" the jump. This year we will be using a "solid" jump to stop that from happening.
I'm not 100% sure how it will be set up, but like this year, the bar will come down if it is bumped. We are changing the rules a little from last year, so I can't give you all the details.