The Dragon's Heart GT:   Made from the very same carefully selected polyamide-imide, The Dragon's Heart GT has a 30% carbon fiber fill, making it both fast and durable.  This pick combines some of best features of both the Original and Hardened.  The GT has a higher lubricity than the Hardened so it plays a bit faster but maintains a grippy surface.  It also has a slightly warmer tone and more transparent attack than the Hardened, but it's durability exceeds that of the Original (up to 1400 hours).  Players having trouble deciding between the Hardened or the Original should definitely try this one first.

Thickness:  2.5mm

Read why this is the best guitar pick for Jazz!