do i need a reboot or just restart services?

I am not exactly sure about this but I think believe the following link Click here will tell you which daemons are restarted and loaded into memory. If you adjusted any config file what is suggested in the link, I suppose the answer is yes you do a bigstart restart.

 

 

In my personal opinion I usually do a reboot if I adjusted something manually in the known config files, just I know my edits are not trumping any necessary order-of-process loading the bigip has to do.