This is properly tricky as the first fifteen metres comprise only downward-sloping limbs… You can see Jos in the first picture having slid his anchor down the limb to the first fork during his ascent. The heavy rain in the morning and moss on the limbs made it ridiculously slippery. This needed some quite tricky re-jigging and it did feel a teeny bit precarious during that corrective operation.
Once that was done, though, the view - and the wind - was absolutely tremendous!
I climbed down to what I estimated was half-way and set a doubled-rope anchor with my 45m rope, which at the ground left me six inches spare….. I give it a conservative estimate of at least 35m high.