This is a good process that seems to be working for you.
It is always advisable to have a single main hekau (mantra) and others can be used for varied reasons as complementary. The Hekau are words of power. When they are made dynamic by their repetition and the deep activation of their meaning (through understanding the wisdom behind them), their vibration and their life force power they are referred to as Khu and then they have the capacity to have physical effects. This is described in the Anunian Creation myth beginning verse 11 that was discussed at the 2015 Neterian Conference