Just loaded a vst and saved it. Now the filesize is 762kB. A bit bigger than what Im used to.
Module1.mptm
http://www71.zippyshare.com/v/n1M2i6oD/file.html (http://www71.zippyshare.com/v/n1M2i6oD/file.html)
The plugin data chunk is huge since the plugin seems to store all its presets in a rather verbose form in it. There's nothing we (or any other VST host) can do about that.