Most of my traffic is from Search Engines and I had the Hubpages Ad Program turned off until the beginning of 2012 when I decided to turn it on. I was making almost nothing on the Google Adsense Program and wanted to start experimenting in 2012 with the income models.
Since I have turned on the Ad Program I have to say I have made far more money than I have ever made with the Adsense model. I wouldn't turn off the Ads Programs on my account but if you really want to you could test it for a week or even a month.
It's up to you but after doing lots of research on Hubpages most people are reporting they make more from the Hub Ad Program than they do from Google Adsense.