Talk:Ihsir's Guise/@comment-58.65.245.234-20151125230844/@comment-58.65.245.234-20151125232927

I tried just now, and you know what? there reduction is not much at all and it's used by one of the most expensive bb gause, the point is  if you have other good secondary, don't use this sphere, the bb reduction is neclegible.