F' L F2 D' R' // R/L EO (5/5)
(L2 F U2 B' D') // F/B DR (5/10) 6c3
B R2 D2 F U2 F' // HTR (6/16)
U2 L2 B2 * D2 R2 U2 R2 // S-slice (7/23)
*=B2 L2 F2 U2 B2 R2 F2 D2 (8-6/25)

L2 U L2 D // U/D EO (4/4)
L // RZP (1/5)
B' L' U2 F2 R // F/B DR (5/10) 6c5
F (B' L2 D2 B L2 [B2 U2 B' D2 B') // HTR (11/21)
(F2] R2 F2 R2) // Solved (4/25)
[]=F2 D2 B' U2 B (-1/24)

R' B D' L // R/L EO (4/4)
B // RZP (1/5)
(F2 U D F' L2 D2 B') // U/D DR (7/12) 3qt
(U') L2 U2 R2 D L2 D' // HTR (7/19)
R2 B2 R2 D2 F2 // Sovled (5/24)

33 eo checked
no good dr

L2 B R' B' R // R/L EO (5/5)
(U' D B2 D B) // U/D DR (5/10) 4qt
D B2 U' D2 R2 U' B2 D' // HTR (8/18)
B2 R2 B2 D2 R2 // Solved (5/23)

106 eo checked

(R2 U L B L') // R/L EO (5/5)
(U2 D2 B U2 B2 L2 B2 D') // F/B DR (8/13) 2qt
(B2 D2 B R2 B') // HTR (5/18)
(D2 R2 F2 U2 L2 U2 L2) // Solved (7/25)

65 eo checked in 1h
I must missed a lot...

I only got 2 DR in 10 : 
L2 B R' B' R
(U' D B2 D B) // U/D DR (5/10) 4qt , optimal gives 23

L2 B R' B' R
(R2 U' R2 D2 B) // U/D DR (5/10) 4qt , optimal gives 22 , too hard

(R2 B R' L U) // U/D EO (5/5)
(R' B' R') // F/B DR (3/8) 3qt
R2 B L2 B' <R2 L2 > U2 F // HTR (8/16) insert R2 L2
* R2 L2 ^ F2 // L4X (3/19)
*=S (2-2)
^=S (2-1/20)

I found this dr very early and first attempt got 22 by 6 moves HTR
so I searched every HTR path and tried any idea
lucky day :D