When I respond to a multi-line post with just one or two lines Pan goes
into a race condition and for all intents and purposes locks up on me. I
think it's doing this because it's unable to launch the warning about
"most of the message is quoted text" or whatever it is. There are some
groups that this is the norm though and isn't considered rude, otherwise I
wouldn't do it.

So, if anyone has time to test this you can do so by posting something
like this: http://www.lipsum.com/ - the default 5 paragraphs is plenty -
to a test group then follow it up with a one or two line response. The
first message goes fine for me the second will not.

Thanks in advance if anyone gives it a go.