I would just like your help on something as I'm new to Bing ads.
I understand that it's common practice to keep split testing your ads and keywords to try to improve CTR.
What I would like to know is what data to use. So for eg if you have been testing an ad or keyword for say 1500 impressions and then decide to pause an ad or keyword that has been out performed, would you then start at 0 when split testing with the new ads or keywords?
Bing has an option to select different time scales, so I guess what I'm asking is do you always use the "Entire time" option or the relevant day you have added a new ad/keyword when checking your figures.
I hope this makes sense!