My CRS is 417 too. I scored in IELTS LRWS 8 9 6.5 7.5... I am short 0.5 point in writing to score CLP 9... Though, I am not sure I can get it if I take IELTS again. And since I cant wait, I submitted my Ontario application yesterday :)
So, if you are confident you can achieve 8 7 7 7 if you...