Jack said:
Well between the Chakra Empowerment mantras in Sanskrit (Yaum,Laum etc) and the Necronomicon Chakra mantras which did you find to be stronger.
I thought that might be what you were asking, but was confused by the wording on the original question.
The Sanskrit are definitely stronger, and I think that is backed up by the fact that they are used for the chakra opening as well, as opposed to the Necronomicon. The Sanskrit ones all feature the "au" sound, which is said to be stronger as well.
For someone who is new, the only concern with jumping right into the Sanskrit is that they can be overstimulating, possibly producing a headache or something.
I don't think there has to be a huge waiting period, either. One can jump from high reps of Necronomicon to lower reps of Sanskrit, for example, then build back up.