Not so far.
Someone on another forum mentioned that something similar happened to them after advancing the ignition just a little too much, and the motor kicked back and ran backwards. I've had the same ignition timing in it for a while now with no issues, but the points/condenser have been in there for about 15 years (+/-) and are showing their age. I get random misfires occasionally, which makes me wonder if the old parts didn't cause an advance spark issue, resulting in something similar. Ordered a new kit anyway, as it can't hurt. But it does pose an interesting question that couldn't readily find an answer to... will worn rubbing blocks and/or extensively "cleaned" contact points change the timing even after proper adjustment has been performed?