[quote name='iiipopes' timestamp='1353337226' post='1873763']
High C does not necessarily have higher tension. It may feel that way because of the lesser diameter feeling more pointed on the fingertip.
Some folks, not liking low B, but wanting the low range, tune the lowest string to C so it is C-E-A-D-G instead of B-E-A-D-G. Even I experimented with that for awhile before going to a size larger B string and tuning conventionally.
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ProseBass, who made my high C five string, specifically told me that it was so. I was asking him about changing it over to a Low B.