_zZz_
Professional Folder
Neste caso o que acontece é que se comeca a processar a nova wu antes de fazer o upload! e resulta.. 
http://foldingforum.org/viewtopic.php?f=14&t=11615

http://foldingforum.org/viewtopic.php?f=14&t=11615
How is langouste useful?
Its intended purpose is to make WU download and return processes
asynchronous (in other words to enable simultaneous downloads and uploads).
Processed SMP and SMP -bigadv WUs are usually large (25-100MB). When WU
processing is complete client sends back the results but new WU is not
retrieved until after upload is complete.
On relatively fast links (1Mbit up) bigadv upload takes ~12 minutes (+5
extra minutes of FAH client/server processing).
Moreover, due to client deficiencies (see
http://foldingforum.org/viewtopic.php?f=44&t=10615) results file cleaning
takes additional time (depending on underlying filesystem -- between
several and 20+ minutes).
As langouste decouples upload and download processes a new WU can be
downloaded while WU upload continues in background thus saving time.
Time that can be spent on simulation.