Sealant in tubulars (1)

is running sealant in tubs going to increase rolling resistance if so by how much. I use vittoria corsa cx or veloflex carbons if that helps

There is a test here on Al Morrison’s testing page 4 using Tufo tire / sealant, basically makes no difference:
http://www.biketechreview.com/tires_old/images/AFM_tire_testing_rev9.pdf
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