You'll always need to experiment a bit, but I'd say that for restart delay, you should lower it significantly, I have mine at 0, some folks use 1 to 5... Depends a bit on the type of failure, a bit less on the stream type/player. For the GUI Check, again the default is OK for me (Channels ignore), but as seen from the feature discussion, you might need to go with "Channels postpone" - then try navigating the bouquet list while a stream is stuck to make sure the restarts are avoided, then exit the bouquet without zapping away and make sure the plugin resumes restarting the stream - all of this is better judged if you're actively monitoring the debug file with debug turned on, so you have a clear view of the plugin behaviour.