Healthy Kimimaro is easily equal to Hebi Sasuke in speed honestly. Kimimaro in the SRA willed his body (it was basically dead), and outmaneuvered Gaara's Sand, 1000 KN0 Clones, Lee (when he wasn't Drunk - Also proves Unorthodox movements > Precognition, and preciseness).Being Unorthodox is irrelevant when Sasuke is 100 times faster. It's like a baby doing random shit trying to hit an adult; only because it's doing random shit doesn't mean it's actually going to land a hit on an adult. Being that much faster allows you to just react, and the Sharingan would still help since it would allow Sasuke to know where said bone will be ahead of time (his hands don't move zigzag on the way to Sasuke, and even if they did Sasuke would be able to know from beforehand due to his Sharingan perceiving muscular movements). Unorthodox styles only apply when someone is as fast as you, or around that level.
Isn't in DB 3 Sasuke a 4 or 4.5 in speed? In DB 2 Kimimaro is a 4.5 with a dead body, now configure in his unorthodox bone KKG, and you've got yourself a dead Sasuke. In my opinion.