The bonus points are related to how fast you complete the WU, the faster it is completed the more points are awarded. SMP wu's without the passkey are only awarded the stated points.
To qualify for the bonus point program ten A3 or -bigadv WU's must be returned on time with a an 80% success rate and with the same passkey. As far as I know WU's completed without a passkey do not count toward the bonus point requirements.
If you are planning on running -bigadv you would want to run ten A3's first to qualify then start the -bigadv.
That's a much better explain then i did... OMFG i really was at n00b level

but my bonus links are FTW
