No need to respect my ears, they are not that great!
Thanks for the links, had a look at both, must say that as it is a little late here Ethan Winer's stuff did not get the attention it deserved. Wayne P's post in the second link does make some kind of sense and probably will make more sense after the second reading. As soon as I get the next two traps ready I will take some measurements using REW, will also do some waterfall plots after doing some more reading. Using REW is still a bit intimidating but am getting the hang of it!