Noam Wallenberg discusses using AKG 414 microphones for recording toms, highlighting the importance of phase alignment between tom mics and overheads to achieve a fuller, more impactful sound.
He emphasizes that phase relationships for toms can be somewhat unpredictable, as even slight microphone adjustments can alter the phase. Wallenberg advises always checking phase alignment in mono with equal levels between the tom and the overhead, flipping the phase on the tom mic to determine which setting provides more low end and presence.
This approach works the same way with other close mics like kick or snare, which is why it's a good practice to keep the overheads as the common phase reference.
Getting the phase relationship to the overheads right will bring the toms forward, making them sound fuller and more upfront in the mix.