The nice thing about the SCAR is that the reload is really quick, so its great for peaking. I would imagine you would need to adjust your play style if your constantly trying to take down 3 people with a single clip.
Yup it's a bad habit picked up from using LMGs, however you can get a triple with the SCAR if you HS (and have the extra round chambered).
![Stick Out Tongue :p :p](/styles/default/xenforo/vbSmilies/Normal/tongue.gif)
The fast reload is quick though, you can duck and reload fast before someone flanks around your cover normally.