A little while ago, cuBerBruce found the following four (34 qtm, 26 ftm) move solutions with k-solve:
Rw U Rw' U Rw' U' Rw2 U Rw2 U2 Rw' U2 Rw U2 Rw' U2 Rw' U Rw' U' Rw U Rw' U2 Rw U2
Rw' U' Rw U' Rw U Rw2 U' Rw2 U2 Rw U2 Rw' U2 Rw U2 Rw U' Rw U Rw' U' Rw U2 Rw' U2
Rw' U' Rw U' Rw U' Rw2 U2 Rw2...