[al lkosmal]

Those are very cool and I admire the design ingenuity. However, I would be very interested in seeing some back-to-back, 3rd party, test results between ITBs with shafted butterflies (doesn't sound good or perhaps they're just the male of the species)) vs shaftless butterflies. Does this invention and the associated flow improvements translate into price/performance gains that will be meaningful and significant to the end user(s).

I'm always very interested in new design improvements...... and then gaining and understanding of how the improvement translates to improvements in the real world.

regards,
al