RE: need good HT servo
Simply go to google and type carefully...
'convert 200 ounce inches to kilogram centimeters'
It'll give you the answer right away, but you ned to write it out exactly how google wants you to, usually with the long descriptions of the units (inches instead of 'in' for example). Works for almost any conversion you can imagine. 200oz-in is 15kg-cm.
Also, stall torque is usually less than holding torque.