Quoted from Endprodukt:Interrupting speech was a matter of limitation with the original sound board. I wouldn't know why anyone wants that. Depending on what sound you want to interrupt, you might be able to set it up by rule.
Been drooling over a Pinsound for my STTNG (I'm listening to a play through in PinSound studio as I type this ). After reading through this post, didn't see a retort for the above, but figured it deserves some attention. Picard is literally interrupting Data here so if it's a limitation of the original sound hardware, in this case, it's a desired one. In the TV series, similar things happen where Data gets cut off and he stops talking (I'd find it rather weird if he didn't).
Has this been fixed since this was last mentioned? Not a deal breaker for me either but it'd be nice to have.