I personally think you're in a safe zone but it all depends on how you perform on the exam day. Getting anxious and stressed out will definitely hurt you, so try to spend some time learning strategies to combat that, only if that's a problem for you.
From what I've read on these forums, most folks scored 5-7 points higher than form 16 on the real deal. But I think all these scores are a pretty individual thing. I say if you've scored more than 235-240 on 3 consecutive forms, go for it!