Google Blended search results more prominent?

Maybe its just me, however I have checked this on a nummber of machines and it does seem that Google are playing around with the Google Product Blended search results.

First they were sat between the paid and organic search results, then we saw a shift down the page round positions 3/4 of the organic results.

However, this morning they seem to be back at number one with a couple of revisions

Leather Sofa blended search differences

1. Font seems at least a point size bigger (and no my settings on the machine have not been changed)
2. Line Spacing between results is bigger

Is this just me, or are we seeing a new round of user testing from Google?

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