Hi Sergey Karavashkin ,
  Re:  How some stars might be spinning so fast that 
  something like a  " hyper sun spot "  would be 
  enough to reach a  " permanent "  orbit ,
You requested ,
" From my view ,  Shatzman's hypothesis 
    to which Noskov referred was weakly substantiated .
  Before claiming so ,
    it would be very nice if you 
    calculate what you are saying and show us .
  I will suggest the same to Noskov .
  Then we would be able to 
    discuss this point more specifically . " ,

Unfortunately ,  I'm not equipped to do that math .

Perhaps that  " hyper sun spot "  would be something that 
  only developed over geological time scales ...
  i.e.  very slowly .