[H] Two wifi extenders different | or same SSD

[Winterlight]

I have a Ubiquiti UniFi_AP-AC-Pro mounted in the hallway of my single 
story house. It is plugged into my Ubiquiti Edge router  and it works 
great... in the interior. However in my front and backyard  wifi 
becomes spotty. I happen to have two   TRENDnet 300 Mbps Wireless 
Easy-N-Upgrader routers so I wired one up on my back patio and it 
solved my backyard problem. I have a second older version one that I 
want to put in my garage to handle the front yard. The routers will 
be plugged into two different switches on my LAN and will DHCP = 
different IP address. They will both use WP2 AES but have identical passwords.

Would it be best to give them different  SSD names or use the same SSD name?