Is it easy to separate karma aquired from submissions and karma aquired from comments? My average comment karma is below 3 and I've only had a few comments over

Is it easy to separate karma aquired from submissions and karma aquired from comments? My average comment karma is below 3 and I've only had a few comments over 20 but most of my karma has come from 2 or 3 submissions of interesting links, which seems almost like cheating. I think the most karma I ever got was from being the first to post about Sublime Text 2. This was interesting but I only got the karma because I beat everyone else by a few seconds. I feel that's far less valuable than the odd thing I've spotted which no one else would have ever come across. In the same way, I wonder how many people have high karma just because they are one of the first to comment on popular submissions. Edit: typo (I wonder how proof reading my comment more would have affect my karma)