Dos Pueblos and San Marcos boys tennis will each be competing for CIF-SS titles on Friday after securing semifinal victories on Wednesday. The Chargers are set to take on Westlake in the Div. 4 championship, while the Royals will clash with San Clemente for the Div. 5 title at the Claremont Club at 1:30 p.m. Dos Pueblos The Chargers pulled out an 11-7 victory over El Segundo in the CIF-SS D4 Semifinals on Wednesday in Goleta. Dos Pueblos capture…