to ATP!
I am sorry but I don't have first-hand experience with this. I am surprised, though, because we're taught in California that this virus is more of an issue in tropical and sub-tropical areas and in areas with a Mediterranean-like climate where the host winters over (we rarely get extended periods of true winter chill).
Have you ruled out an environmental reason for the leaf curl? I see that Super Sweet F1 is indeterminate and, according to Clemson, indeterminate tomatoes are more likely to develop physiological leaf curl than determinate ones - especially during this time of year (spring to summer transition). I am familiar with this type of leaf curl and I see in your post that your weather has been off....
http://www.clemson.edu/extensi...
Do you have an extension or farm adviser nearby? In California, UC Davis offers a test for Tomato Yellow Leaf Curl with results within 24 hours - perhaps someone in your area is able to do testing?
I apologize that I cannot be more of help. One thing that stands out to me, though, is that your leaves do not appear to be crinkled/crumpled. UC Davis lists "strongly crumpled" as one of the primary signs. I don't know if you have seen this, but here is a link to their guide and they have a downloadable brochure with several definitive pictures included (the link for the brochure is at the bottom of the page):
http://www.ipm.ucdavis.edu/PMG...
Again, I apologize that I cannot be more help... perhaps someone else will chime in with first-hand experience.
