Seems like with the improved TIFF support in 9 and 9.1, jumping out to other tools that can make TIFFs is now handled much better. I'm getting On1 10 to work pretty cleanly now in Edit with and Open with from C1 without needing to route it through Ps first.
Nice, I’ll have to try On1 from Capture1! So far I send the files from C1 to Photos OS X. It’s working great.
Milo
www.milosmetal.com