"And why do you think that there are "sides" in this discussion?"
In some discussions people work together in search of a truth that neither fully owns. In others the participants have opposite opinions, and try to change their opponents' minds to concur with their own. I think it reasonable for these to be called the two sides of the discussion; here, on the one hand, we have Jabba, who would like to convince us of the authenticity of the Shroud, and on the other we have many who would like to convince Jabba that it is of medieval origin. For the medievalists, the principal evidence is the carbon-dating, which, in spite of the minutest examination, has yet to be refuted in my mind, and for Jabba, well, difficult to say what, if I were his attorney, I would lead his case with. Probably an examination of the depiction of the body of Christ over the 12th-14th centuries and an attempt to demonstrate that the evolution of its design depended on a full length, naked, crossed-hands, blood spotted original, which I would suggest was the Shroud arriving in Europe from Constantinople in 1205 or so. Possibly I would use the pollen, the limestone and the vanillin as cumulative evidence. I would however be aware that if the medievalist attorney was as good as myself, he would be able to discredit all these in front of the jury, while I would not be able to budge him on the radiocarbon evidence one bit.