Better to take WPN 27% rakeback or normal bonus system?

Hi everyone, i currently play at ACR and have 27% rakeback, but i want to start over on WPN with a new screen name on True Poker. Is it better to take the 100% welcome deposit bonus and just use the normal bonus system, or should I get the 27% rakeback? I play maybe 10-20 tournaments per week, buy in range from $10-$50. I can't figure out which option would be better for someone who plays as little as me, does anyone have an idea?

thanks
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