Guess what, Sub-20 global is possible with DF/UBL too. Minimal floating in this average, if there was an easy cycle break case I took that instead.
Average of 12: 19.53
1. 17.72 U D' R' D F' R' U' F R' U2 F2 L2 U L2 D F2 B2 R2 U' D2
2. 21.91 L2 R2 U' L2 F2 R2 U B2 U2 L2 U L' F2 R2 U2 R' B'...