Here is an article about how John views the Compensatory picks and his history.
It's an interesting article about what they have done and are doing.
It also sheds some light about how he also approaches FA and why we don't always go after big names early.
http://cover32.com/seahawks/2015/03/13/ ... aft-picks/
Edit:
Here's another article that discusses comp picks as well as having links to Cap space and FA rules.
http://overthecap.com/2016-compensatory ... e-3132015/