To many variables to really reach a usable conclusion (other than big lines have more friction). It is interesting none-the-less. I would like to see the difference between a line like maffioli vs. a composite core like V100 (I know, it's obsolete but it's all I can think of at the moment).

I love the durability of the line we have on the I20 but the cover is so thin and the core so thick that we really don't see much benefit from tapering it and the new 10:1 blocks we have don't work all that much better than the larger diameter 8:1 blocks.