Alot of the dry holes on these maps go back well befor london flats and hence can be misleading. New tech may well change some of these holes to producing.
Sharks...yep a good read and agree with your sentiments. Being aware of strange movements that are somewhat inexplicable at times can be understood if you follow the VSA methodology. if you follow the Charts thread you will see several knowedgable posters there commenting on this ie LYC.
Cheers
SSN Price at posting:
9.2¢ Sentiment: Buy Disclosure: Held