Possible to beat PLO zoom smallstakes without rakeback?

Is it possible to beat PLO zoom smallstakes (PLO10 and PLO25) without rakeback? Im currently in a country that dont offers any rakeback.

I know the answer depends om how good you are and your playing style. Im pretty sure im better than the most players z10 and z25. Im 100 % sure that there are some few good regs at z25 that i prolly dont beat. I might be breakeven vs the best ones but i dont know.

So back to the question, given these circumstances: is it possible to beat those stakes? How big is the rake at those stakes?