[LAU] short audio drop out when new jack clients are created and connected

Hi, I am currently giving linux-show-player a try but the following problem might happen with other software as well. In linux-show-player audio files can be played back from a cue list. Each cue is implemented as a separate jack client. I am having the problem that starting a cue, while another one is already playing, is causing an audible drop out in the audio processing. When running the software under alsa, this does not seem to happen. I suspect that creating and connecting new jack clients causes this to happen. No xruns happen though. I can not reproduce this exactly, although it happens at about 30% of cue starts. Increasing jackd's buffer size does not help so far. How can I go about to debug this further? Thank you! Peter