Personally, learn what you can from this guy. The best way to really be schooled in something is to learn all the different ways things are to be done. THEN, as someone who knows more than just one way to do things. Decide what you like best.
As a side note. I agree with what your current teacher is teaching you. palms down, and wrist action. Hold your sticks loose between your thumb and index finger. This gives a good pivot point and allows for bounce (especially in your double stroke rolls)
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