As promised last weekend, I’m delving a little deeper into Firestone Walker Brewing Company’s catalog. Tonight, from the Proprietors Reserve Series: Double Jack Double IPA. Double Jack pours red-gold with a massive, clumpy head. Bright on the nose: floral hops and grapefruit. Taste delivers on smell’s promise: grapefruit and hops up front. Candied malt and sticky caramel dance on the tongue. Fruity finish, with a nice alcohol burn and lasting bitterness. An excellent upgrade.