Also heard from the stages guys that allegedly the tooling for DA 7700 cranks broke and they are not in a rush to remake it. Apparently they either might stop making track stuff or update the crank and BB to hollow-tech and more modern standards.
The new stages head unit can record data up to 4 times per second with a change in the setting. sound similar to the old srm's . Apparently 4 times per second is the max that ANT+ can handle.