Help with vrusk comprehension

<i>What is the difference between a non-vrusk PER/LOG check and the vrusk comprehension check?<br /></i><br />Below is an example scene and result how I would judge - but need your all input HUMANS! <img src="http://starfrontiers.us/modules/tinymce/tinymce/jscripts/tiny_mce/plugi…; alt="Surprised" title="Surprised" border="0" /><br /><br /><b>Scene:</b><br />A computer operator displays critical data involving a stolen robot, spandex briefs, a Spacer Rest frequency card and a pair of yazirian sungoggles. The Referee ask for a LOG check from each player. The vrusk player ask if she can make a comprehension check in-place of the LOG check. The Referee agrees.<br /><br /><b>Result on a successful check:</b><br />LOG - The robot was stolen who's owner is a yazirian.<br />Comprehension - The robot has an improved AI and went quirky - donning his owners spandex and sungoggles he stole his Spacer Rest card, now you know the rest of the story