Guardhouse Upgrade / New Wave

It would be better after the upgrade of the guardhouse the new wave that you get, would be put in the end of the row and not first. 
It destroys somehow the defense concept that someone develops because the first wave is one of the most important, if not the most important. And you need so much time till you get it to a level that you had before on your first wave.  

I agree 

Agreed. I always find myself always having to scramble to upgrade wave #1 after adding a new wave. It usually takes me a day or so to be able to get them to a decent morale value.