Migrating v4.5 config to v9.4.3 BIG-IP

My mistake our 4.5 is on 540's also i have 9.0.5 on 3400. I assume i can copy the ucs file directly from 9.0.5 to the new 9.4.3? I think i have to change the hostname on the destination device first and then copy the ucs file across, reboot and then change the hostname back?

 

 

I did hear that it may be easier to create the config from scratch instead of migrating the 4.5 config to 9.4.3 but wanted to see if there was a quicker way.

 

 

many thanks