Can You Combine Different Methods of Silent Prayer?

Do you think it’s possible to legitimately combine Christian Meditation (WCCM), The Jesus Prayer, and Centering Prayer into a single practice? For example – to entrain The Jesus Prayer to your breath as the WCCM mantra (breath in – Lord Jesus Christ, Son of God; breath out – Have mercy on me, [a sinner]), and then to focus on your Centering Prayer Word …