QUOTE(miffy @ Sep 23 2009, 05:09 PM)

Thanks for your replies.
I know the sound is affected (although if you saw these violins...!)
I'm more worried about the potential of damage - I had heard about violins cracking or collapsing in and wanted to check my facts really.
Otherwise I forsee the senario where teacher tunes violin, violin crumples into firewood, parents bill teacher for new violin, teacher has to do runner....x
The stories you have heard are true...don't do it!
Consider this - if for any reason the soundpost falls down on a violin the recommended action is to loosen the strings
immediately, then take to a luthier. Otherwise the belly is likely to crack.
The soundpost makes a huge difference to the sound and you can't judge a violin without it.
In the past I have tinkered a bit with violin making at evening classes and was amazed at the difference a good set up could make. I once bought a cheap case in a junk shop which contained a battered violin with no strings, bridge or soundpost. It was the case I wanted (an old English 'coffin' type) and just stuck the violin in a cupboard. Some years later I tried setting it up for a friend's daughter who was just moving to a full-size, and it came out a very good sounding instrument which saw her right through her school years.
QUOTE(Sandy Garrity @ Sep 23 2009, 04:51 PM)

QUOTE(miffy @ Sep 23 2009, 04:21 PM)

I've had 2 new learners for group lessons turn up without soundposts.
I need to ask, "Are you a violin teacher"?
I knew a piano teacher who couldn't remove a pencil from a grand piano! A bit extreme, but teachers aren't necessarily technicians.