I teach a working portion of 1.2, MOD of 1.4, max deco of 1.6 when diving OC. When diving CCR, I teach 1.2 and 1.0, depending on duration.
If adding 5 minutes of deco chills your willies to the point where you're willing to push CNS exposure, then tech diving isn't for you.
If adding 5 minutes of deco chills your willies to the point where you're willing to push CNS exposure, then tech diving isn't for you.