testing new ads in campaign running conversion optimizer
We have a campaign that has been running conversion optimizer. It is showing the "best" ad in the group about 90% of the time.
We'd like to test new ads against that "winning" ad. When we put in new ads, will conversion optimizer initially show them all evenly and then gradually start to serve the best performing ad most?
Or do we need to change settings to rotate evenly for a while and then turn conversion optimizer back on when there is historical data?
Thanks for your help.