I do not have a rope wrench, I would love to get one but right now not in the budget.
the F8 revolver - YouTube
{edit} Sorry I should have mentioned this when I first posted this is not my video just found it while surfing, sorry about not mentioning that earlier.
The first part of this video is almost exactly what my set up looks like for my short descents/and or limb walks. A lot of the video looks like my set up but I do not do long ascents with this set up. I do a lot different set up for long ascents, I can give you more info on that but it would require a lot bigger response, just don't have the time right now. If you are interested let me know. I use just a rescue 8 for my long descents.
The rope wrench does not have to be removed at all for descents or ascents, if you stay with a prusik below it. My friend has a rope wrench and loves it. I have used it a few times and I think its worth getting one when I have the money. His does not have the stiffy attachment, I would assume that makes it easier from looking at videos.
Any other questions please ask.
Keith