It is a field trial stake, so get familiar with field trial rules. Should be the same as any qualifying stake at a field trial. I’ve run qualifying stakes at field trials that were weak master setups and I’ve run qualifying stakes that would be good amateur all-age tests. Depends on the judges, the grounds, and to some extent the field of entries. Judges try to get separation in performance between dogs. A strong field of dogs will generally require tougher tests to get that separation.
As Bubba said, I like to bring back as many dogs as I can, with time always being a concern. As with other stakes, there are certain things that require elimination (see rules), but everything short of that is judgement. A very accomplished pro trainer told me one time, if your dog’s performance in a series isn’t in the top 1/2 of the field, you should be worried about being dropped. Keeping that thought in your head will keep your expectations in check.