It seems the steps just at the beginning are not enough. The Rs keep getting stuck for me. Your last one had steps going all the way up and that worked well.
I found the release timing to be difficult to get correct. Liked the finish. I think the reply by @XSHY presumes everyone has already noticed a certain arrangement of blocks.
@XSHY I see! I think the arrangement of Up is more useful in a level, though, since it doesn't require special knowledge of the player.
WOW ! That was graceful, engaging and required excellent release timing. Must have taken me about 12 restarts but worth it for this unique experience