bee escape orientation ?

[mikesfarm]

I had always assumed that bee escapes were placed on top of supers to be evacuated. If placed on top of a bottom entrance hive the can not get out the top. Can escapes (triangle) be placed below the supers to be evacuated ?
I assume that the can and often are. If you have multiple supers on do you rotate the full one to the top ?
Thanks

[berkshire bee]

I put the full super I want empty of bees on top of the stack with the bee escape underneath, screenside down. They work great.

[Michael Bush]

Usually they go under, but I like to stack them with one under (on a bottom board) and one on top. The orientation, of course, has to be the right direction so they get out but not in.