Do you let players loot mechadendrites off of defeated enemies? This seems wrong to me on all kinds of levels, but there's no rule stating that you can't do it. The Tech-priest character in my campaign has tried to do this on two separate occasions, and he's perfectly capable of installing the looted cybernetics himself (he has a very good Medicae skill).
On the first, he encountered the site of a 20-year-old battle and the corpses of some augmented tech-priests who had died defending a ship's engine room. He removed some mechadendrites and installed them on himself ; I allowed him to do this but gave him some Corruption Points. To a follower of the Emperor, his act would be analogous to harvesting the organs of human soldiers who gave their lives in defense of a cathedral/holy site.
On the next occasion, the party had just defeated a heretical tech-priest, and the PC wanted to loot the BBEG's mechadendrites and other implants. In this case, I flat-out said no -- the BBEG was heavily augmented and looting him would propel the tech-priest far past the other players in terms of gear quality.
Have you encountered any similar situations in your games? If so, how did you handle them?
Edited by Covered in Weasels