Thanks, the Armenian examples help. I hear a clear difference, the "aspirated" k at the end sounds somewhat like a [kç] for me. -)
 The difference of the t in "distend/distaste" is noticeable, if I listen closely, but normally I would not notice it at all.
 I think, I always speak "unaspirated". The aspirated consonants sounds a bit like "spoken with numb lips/tongue" (like when you got an anestesia from you dentist). ;-)