The odd conclusion being that butyl inner tubes reduce RR.
Knowing that the influence on RR of a latex inner tube has barely any measureable impact on RR that is an odd conclusion indeed.
Especially so when one considers the fact that in all other RR tests carried out so far over the past decades and beyond, tubulars and clinchers confounded, the top performers invariably where the ones that had a latex inner tube.
This begs the question: how on earth did they arrive at such a conclusion?
One other question that pops up which may have been answered in the Heine article is what butyl inner tube did it take to beat all other contenders?
To my mind, and I think I've mentioned it before, the only way to beat the RR record holder is to build the same tyre and do away with the inner tube altogether. After all, wasn't that one of the "raisons d'etre" for the tubeless tyres in the first place?
Being a snob is an expensive hobby.