A question?

[imported_machine]

i play 20+2s on empire and make a steady profit and get by hitting a big one every now and then and i make sure i have 30 times my buy in and i stick to my 20+2s playing the percentages. Where as one of my poker buddies switches between 20s,30s 50s and throws 100s in now and then also plays some 3/6 no limit cash games as well he has less of a bankroll than me as well, but he has been doing really well lately making like 1000 dollars a week for last 2 weeks, he has never really had what i would call a bad swing. To give you an idea in ability we are both at about the same level. Do you guys think this variance of games etc will get him in the end? or do you think i am to conservative?