Thanks for the reply, Mark.
I think it is just a case of having looked at things from a slightly different angle.
I was just uncertain how a stationary unit in the open would be spotted automatically when there is intervening DT, while a stationary unit in DT with nothing between it and the spotter requires a roll. The same amount of DT is present in each case (as far as I can see).
In 'real life': I'd have problems spotting a group of guys through several meters of jungle regardless of whether they were in it or behind it.
Sorry to be a troublemaker!
Thanks
Chris
PS Have you found a UK stockist?
