A few answers in one here – hope they help
Firstly, there’s been a lot of work on the Ranger’s Path and it’s definitely better than it was. But there’s still more to do. It’s a pretty full on scree/boulder fest that’s mainly somewhat harder than the Black trail centre trails.
Secondly, the turning to Telegraph, if you’re going to push then the footpath straight after the gate is the best route to the col. But it is a footpath and the ground is soft so it should be pushed really. The BW is too steep and soft to ride anyway (as shown in the picture linked above!).
Finally, weird idea to head North West over Foel Gron/Foel Goch/Moel Eilio or south over Moel Cynghorion. Firstly there is no legal riding on any of these and this is a seriously sensitive area when it comes to access and bikes (see voluntary restrictions as an example). And secondly they are steep and grassy with only faint, mainly soft and muddy, paths linking them. Would be about as much fun as riding on a tipped up football pitch.
There’s so much good legal and non-sensitive riding in Wales and Snowdonia, why ride ridges where we’re not welcome?