Fighting Films Superstar 650 gi advice

I'm about to order a 170 blue super slim fit. I'm 170cm and imagine this would be the best fit but I've read some other posts on here saying that they come bigger and pre-shrunk. My old gi's A measurement (from sleeve to sleeve) was 60 inches which fit quite well but the FF sizing guide says this gi has a 65 inch A measurement.

Any advice from FF buyers on whether I should follow through with 170 or order a size down? Thank you.