Thanks!
Then I'd say the biggest factor would be how you play or the automation you use to play. My SK and WIZ with similar group composition and gear (also gold) dont come anywhere close to your numbers.
My SK is on SoR t3 group gear with radiance sword, slayer achievement and 8 trophies (6.3k spell damage) and it usually hovers around 7m on a burn (with Bard and Shaman on the group). However, both wizards (one gold, one ftp) are very close to each other on DPS (but again, they do 1/4 of your damage).