Any tips on how to deal with pipeline buffer leaks that are appearing when looping round a package multiple times. Also any information on whether tweaking DefaultBufferRows / Size or threads would be helpful...
(this is all stuff that either worked or wasn't as bad in the Dec CTP.. so much for progress....)

Pipeline buffer leaks
aquaseal
Tweeking the settings won't help. The problem is a setting is being retained from one execution of the pipeline to the next and not getting reset.
My only suggestion for the near term, until the fix is in, would be to put the pipeline into a sub-package and executed it in a loop. Lame, yes. I have no other suggestions, apologies.