> Yes, a lock/unlock event affects the whole flowgraph, by necessity.
> 
> Reconfiguring flowgraphs should be considered a very big hammer, often
> used in cases that can be solved some less invasive way.

Just in case anyone is looking for a less invasive way to dynamically configure 
a graph…

I just tried out Copy block and it seems to be a great way to turn on and off 
segments of a flow graph. I was locking & unlocking a graph to remove and add 
blocks.

This seems more elegant and prevents any problems with the WavFile-Sink.

http://gnuradio.org/doc/doxygen/classgr_1_1blocks_1_1copy.html 
<http://gnuradio.org/doc/doxygen/classgr_1_1blocks_1_1copy.html>
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