Traps versus Turrets.
1: Is it better to have all Turrets or a mix of both Traps and Turrets on your city wall?
From the guides I'm to understand the consensus is to not build Turrets until you can build them to level 9, but when you do start letting Traps die (or if the answer to question 1 is to build a mix):
2: Does placement on the wall page make a difference?
Example: Does it matter if your field looks like
TTPTT
TPPPT
TPPPT
versus
TPTTP
PPPTT
TTTTP
?