From my experience of a few months ago there seemed quite a bit of damage to some of the longer restored sites... hence my point, if things get conserved you have accept ongoing cost to keep it that way, hence better to lop a few trees, simple paths, repair and stabalise structures, deal with shafts... the finest example I have seen is Holmbush... its got all of its character, but can now be seen properly... no plaques, no concrete steps or metal railings.... hence it gives the minimum of stuff to target! On going management.... tree felling and tidying every now and then (I mean few years)
Aaaaaaaaaaaaaaaaaaagh Creeper!!!!!