I wanted to provide an update on a successful method of reduction I've found. My 6 inch F4 newt came with a 2 inch to 1.25 inch adapter which has threads for 2 inch accessories. Screwing on the .7 Antares reducer onto this adapter allows me to use 1.25 inch capabilities with extra reduction. I've been using my Tele Vue 40mm Plossl afocal using the Tele Vue Envis adapter which provides .7 reduction of it's own. Then added to the .7 antares works well.
I've found this works especially well for situations where you need more FOV such as the Rosette Nebula with my 6 inch F5 refractor. It's not perfect across the entire field of view, but it's decent. I have not tried this much for normal unfiltered or long pass filtering. Though I did last night and had a very nice view of M81 and M82. M82 is actually quite good with Night Vision.
See the .7 reducer attached to the 2 inch to 1.25 inch adapter below: