I use M2 U M2 U2 M2 U M2, pretty much the only one there...
for double H perm:
/3, -3/-3, 3/1, -1/3, -3/-3, 3/-1, 1
and I PM'd you about the double U perms
and my question: Where can I buy square-1 stickers with the mf8 colour scheme (green top blue bottom), do I have to order 6 separate singles off of cubesmith?