CREATE TABLE table_name_43 (pick__number INTEGER, reg_gp VARCHAR(255), rd__number VARCHAR(255), player VARCHAR(255))
What is the highest Pick number that had a road number that was less than 6, featured Bob Dailey as a player, and which had a Reg GP bigger than 257?
    
SQL: SELECT MAX(pick__number) FROM table_name_43 WHERE rd__number < 6 AND player = "bob dailey" AND reg_gp > 257