I seem to have discovered the issue, and it seems it could be a possible bug.

What seems to have happened:  I changed my minimum payout threshold to 0.015 BTC, after the balance had already reached a point higher than that.  As such, it didn't seem to "trigger' the payout as the threshold had been bumped lower than the current BTC balance.  Once I changed the threshold to something higher than the BTC balance on eligius, once it reached that amount it successfully "triggered" the payout into the queue system.

So, it would appear changing the minumun threshold for payout "jumped" over the trigger, and resetting to an amount yet to be attained it successfully triggered when hitting that point.