For a few years, neighborhood slice retailers didn’t experiment a lot with elements or new combos. A college of neoclassical pizzerias that respectfully tries to enhance on custom has sprung up over the previous few years at locations like Scarr’s, Williamsburg Pizza, Paulie Gee’s Slice Shop and Mama’s Too. Earlier this 12 months, Lucia Pizza of Avenue X in Sheepshead Bay, Brooklyn, joined this crew.