It'd be great if the score filter for an endless flashcard test was re-evaluated when each iteration of the test completes. This way, cards reaching a certain threshold could be eliminated while the test would go on with the remaining ones, until all cards reach the upper score limit and there are no cards left anymore.
I use a profile for learning new words where such a feature would be of great use. Right now the same effect can be achieved by setting the "Maximum number of cards" to "All" and re-running the test but making the test "Endless" and not having to relaunch it repeatedly would be much more convenient.
The profile is a score-based fill-in-the-blanks test that keeps asking me progressively more difficult questions (pron from audio, pron from chars, chars from pron, chars from defn, chars from audio). On correct answer, it adds +100 to the score, which moves me to the next question on next run, while an incorrect answer resets the score back to 100. Once the score for a card reaches 600, it is considered learned and should not appear in the test anymore. (I then move these cards to another category, which includes them in my repetition-spaced review schedule; a completely separate test with a separate scorefile.)