While I no longer use a handheld mic, when I did, the two best I discovered were the Sennheiser E855 and the Samson Q7. The Q7 has since been replaced by the Q8, which I understand is a bit fuller sounding.

Good luck,

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)