Don't turn the Hyper 3 reg in or out for adjusting FPS, this should be done with the included spacers. Common mistake NT users make. With the Hyper 3 on the NT you adjust the operating pressure and NT's should always be around 125/130, maybe a bit lower when broken in.
Put in the biggest diameter flowtip, it's the green one. Why? Because smaller diameter flowtips have more air pressure on a smaller area on the paintball. This can cause chops, what NT's are known about when it is getting colder. Inserting the biggest flowtip gets you the biggest surface area on the paintball that is hit by the air = gentler on paint!