Please Be Quiet Berkeley 2017: Round 2, Scramble 2
2017 02 05

Scramble: R' U' F U L2 B2 U F2 U2 L2 B2 R2 F' L2 U' F2 D2 U B2 D2 L F2 U' R' U' F

U2 D' R' B (1) D F L' U (8/ 8) // X-cross with 2 F2L edges
F' R F R'               (4/12) // Last F2L edge
B' D' L' D L B D2       (7/19) // All but 5 corners

Insert at (1): B (2) U' B' D' B U B' D (cancel 2)
Insert at (2): B2 U' F' U B2 U' F U (cancel 3)

Solution: U2 D' R' B U' F' U B2 U' F B' D' B U B' D2 F L' U F' R F R' B' D' L' D L B D2 (29)

Second ever sub-30.
I found a first insertion which cancelled 4, but the second insertion with that couldn't cancel any. I think I might have just missed something though. In any case, my insertions were optimal.