Not entirely ready -- still take or withdraw?

Hi, I need some advice about whether to take the June 2016 LSAT (not in the US). As for my current range, I could hit a desired score with a bit of luck, but I would fall short by 1-3 points (or more) under normal circumstances. The test is in 10 days.

In this case, would it still be better to take the June LSAT as a "trial run" so that I will be less anxious and be more comfortable with testing conditions in September? Or should I just take the test in September when I feel ready?

I know schools don't view cancellations as negatively as they used to before, and I don't plan to take the test more than three times so wasting one take would not be so bad, but still I guess it would be ideal to have just one score on the record...