Vera Factory reset - should i also factory reset zwave network also?

Have just done a factory reset on my unit and plan to rebuild to start from scratch and get rid of some issues, thats just completed but on restarting its picked up all my devices as they are on the zwave chip.

should i do the following?

[ul][li]reset z-wave network[/li]
[li]reset z-wave chip?[/li][/ul]

Ta
Stu