They've been "fixed"(nerfed) they were much harder in the first few weeks.
Revan in foundry for example would do a 30k hit when he reached 30% which means the tank had to blow all cds and probably still die and the other 3 would have to kill him from 30% down. he dont do that anymore.
I dont have a Columi weapon in either hand, and we dont run normal mode anymore so im not going to get one. my current ones are 126 level so from 126 to 140 is a huge increase for me.
Erm no? Not problem solved at all. the difference between the Columi and the Rataka gear is quite large dispite only being 4 level higher.
Btw Bump this thread in customer service, maybe they will see it then..
http://www.swtor.com/community/showthread.php?t=234827
The 2nd Swtor.exe is the launcher, try turning off the shadows it seems to help lower end systems quite abit, and yes that setup is pretty close to the edge of playable.