In reply to Lemony:
You're right Lemony, when folks refer to Northumberland they are usually discussing Sandstone. We don't know the what or where regarding Franco's use of the skyhook he's seeking, but for those unfamiliar with the issue in Northumberland it's worth reiterating their unsuitability on the County's softer rock. A lot of what we climb on up here has to be treated gently if it is to survive. The principle applies to all pro, for example cams behind anything other than enormous flakes, gear at the edges of cracks and flakes and so on. A more subtle point is that if you are likely to fail, and fall, gear that rips may put you in a less than optimum position if or when when deck . Given the height of the routes in the County there's a good possibility of hitting the ground should gear or rock fail.
So, if it does fail or rip, you may get hurt and in doing so it will probably damage the rock, a good example can be seen on the layback flake of Lorraine. We need to remember there's nothing wrong in walking away and doing something else.......
Skyhooks are probably the most tenuous tool to use for pro. The last admitted to use in Northumberland was posted up on Youtube at the start of the year, on the classic 'On The Rocks' at Back Bowden. The hook ripped, thankfully with no damage to the route, (That was luck not design.) or indeed the climber, who was gracious enough to admit it was an error.
So, be careful about what you place and where, and aim to protect both yourself and the rock.
Cheers,
Steve