Yep. On the SMGTe always. On the Furai, normally. Sometimes the chain snags the power side idler (its not expecting to be fed links from the front) with the result that the chain dips and slackens off. Half a turn later, the derailleur spring kicks in and pulls it through.
being clipped in means I backpedal half a turn at almost every stop to get the optimum opening stroke. Mine's much better with a clean chain.