we shall see if the new bone/rigging system in P7 is up-to-date. it may well involve non-spherical zones, bone-weighting, and it may well include jcms for everything. of course, one can already use some kinda trick to change the zone shape, but regardless of its apparent shape, in pre-p7 versions, the zone always acts in a spherical influence. that's the great thing about cargo-cult-coding - the expectant users waiting breathlessly for all the wonderful and amazing ways that the new software fixes the old stumbling blocks.