i assume you're pulling sumo?

yea your feet are suppose to be pointin outwards a bit.

I like the conventional way, i think i would be too afraid to try it the sumo way with the risk of injuring my back.

The sumo stance has a LOT less preasure on the lower back and hits the hips/glutes a lot more. Sumo has many advantages over conventional. Less strain on the lower back, easier to maintain a tight arch in the lower back, and less distance to pull.

The thing is with sumo is that it does require a lot of hip/glut/ham strength because that is where the preasure is. Also, why more people don't use sumo is that it requires a very precise technique to lift heavy. When doing light weight it is really easy to keep form but when going heavy everything usually goes to crap for most any lift. Sumo requires a lot of technique and if you don't have the form down on the heaviest of lifts, you'll miss very very easily. With conventional if your form slips a little it's a lot easier to pull yourself back together. With sumo it's all over witih. A person could hit a PR of 500 one day then struggle with 400 later on because the form is off.

-Doogsy