Eflin hasn't been especially sharp since May 13, but in the seven outings from that day to this two have been fine. May 19 against the Marlins (6 IP, 2 ER, 6 K/0 BB), and June 9 against the Braves (6 IP, 1 ER, 7 K/2 BB).
The story for him this year has been home/away splits:
Home
6 GS, 2.13 ERA, 1.158 WHIP; 37/3 K/BB, 3 HR
Away
8GS, 6.26 ERA, 1.370 WHIP; 46/9 K/BB, 10 HR