Funny, I kind of found the opposite! So, I suggest running a test.

You could increment the MobileWikiAppArticleSuggestions schema, removing the "version" field (since it's redundant now anyway) and adding a "suggestionsSource" field. Make a copy of SuggestionsTask which uses the new method to generate results. Bucket users 50/50, half of them getting the old method for suggestions and half of them getting the new method. Transmit which version they got in the "suggestionsSource" field. Run analysis to determine which gets users to engage more, then go with that way! This would make a nice quarterly goal for next quarter, I think. :-)

Thanks,

Dan