I often do a series of edits for an image and end up with up to a dozen versions, each corresponding to a different "look". This works beautifully if I only edit the master with Aperture. However, if I use a plugin, to edit a file (in a managed library) Aperture automatically creates and then saves a TIFF copy of the edited file. As far as I know, I can only specify this saved file format to be PSD or TIFF (but not JPG) in the Aperture Preferences, and only for a single external editor. Obviously, with a TIFF file saved for each version, I end up using up a lot of space. I'd rather have these versions saved as JPGs, mostly to save storage space (I have close to 70,000 files).
I know I can export the saved version files as JPGs, delete the versions created by the plugins, then import the exported JPGs back into the library, associate them with the master and stack them. This is a lot of extra work that could be easily avoided if there was a way to specify that the versions created by the many plugins I use should be JPGS, not TIFFs (or PSDs).
So, here's my question, is there a way to do this, either via some hidden settings, or some other way that eliminates the export/import burden?