Yes, I've now got all my protocols defaulting to a 50% duty cycle. A while back, I had the default set at 33%. I'm not sure that either default setting has made a huge impact; and, while I also see recommendations for anything from 25% to 50% in various places, I haven't yet found a protocol that requires a specific duty cycle. I'm planning on setting the default back to 33%, as that is the LIRC's default as well...