This is a very enjoyable route, and it started with the discovery of a nice solid stony bit of land by the road to park three cars, and a highly pleasant and gentle uphill walk along a stream with beautiful views all around. However, it comes with a warning - the route taken on this track south-west from Benwiskin back to the start point is NOT advised. Not because it isn't safe and pleasant, but because the land owner would prefer walkers did not use this route. If you want to descend Benwiskin, please come back the same way, i.e. via Anacoona (Slievemore). I only found this out after I had done the route! A friend told me that there are no more access issues with the route from the start point to Slievemore, in fact they have even built nice car parking spots to accomodate visitors (if you find a fence in the middle of the road with a white bag on it, you can move it aside, drive through, and put it back - it's there to stop animals not people).
This track was walked with a large group of people with varying levels of fitness, so it was taken slowly and gently.
As stated in many summit comments, this is a wonderful route and views from Anacoona / Slievemore are fantastic. We were lucky with the weather, so I recorded the outing by taking a few photos: