Thank you. Yet for my trouble on this thread I've been called silly twice, patronised as "old bean" twice, told to keep up and accused of deliberate trolling. If Rhiannon or the Eds think I'm at fault I'll take notice but frankly they won't.

I'll say no more - except to repeat myself boringly: with Silbury being the only 360 degree consistent slope SSSI in the country, filled voids still migrating upwards daily and primary archaeology only inches below the surface people should stay off it! ;)