No difference. Paused is like it does not exist. When switching ads, you have to give it some time to get reflected onto QS on keyword level.
PPC Consultant
3:47 pm on Jul 24, 2008 (gmt 0)
in my opinion, if it is a brand new account, you need to get some traffic to even figure out what the reliable ad copy ctr is. Once you have 100-150K impressions, the account QS seems to stabilize. During this initial period, once the ad had about 1000 impressions or so, I suggest you edit the low ctr ads rather than pause it.
