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“The mini driver is occasionally swapped out for a 3-wood but, for the majority of the time, Meronk has the mini driver in-play, as well as a Ping hybrid, which we believe is the Ping G425 with an 85 X shaft.”
“Hybrid: Ping G425 , (UST VTS Red Hybrid 85-X), 19 degrees”
7 more players cited with it, listed below.
Players who use this also use

Ping G430 5-hybrid
also used by 2 of them

Ping G430 Hybrid
also used by 2 of them

Ping G440 Hybrid 20˚
also used by 2 of them

Ping G440 Max
also used by 2 of them

TaylorMade Qi10 Tour Hybrid
also used by 1 of them
TaylorMade Qi35 hybrid
also used by 1 of them