How do you beat Bloxorz level 33?

Level 33 (70 moves, can be done in 66 or even 65)

R4, U, L, D3, R2,

U, L, U, L, U2, R2,

D, R, D, R, U, L2,

U, R, D, R,

D2, R, D, L, D2, R2, (reach X)

U, D, L2, U4, (the trick here is that you want to be flat on the metal, not upright)

L, U, L, D, R, D, R,

U, L, U, L3, D3,

L, D, L2, D, L, U

(see also video related link)