yes i did,looked a niceset up.
i thought it was something like a v.t
i was using a v.t but tried a knut instead because it was a more compact knot. its not as good as the v.t though, i may give yours a go tomorrow.
like you, ive just started tying to the d, but im having a few problems, certainly isnt as efficient as having it on a biner thus far, but im still tweaking things.
be interested to see your modified pulley to fit the d