Haven't driven my car all day today (car pool with 2 other guys and it wasn't my turn to drive). I'm going out soon tonight and will prob be on the freeway and do at least 10-20 miles of driving. Plenty of driving to heat up my car and see if the smoking problems as bad as it used to be. I did see a few small trickles of water fall through the hole in my muffler so maybe after a few days, it'll clear out the system and, hopefully, stop smoking. What I got from my instructor was to drive around during the weekend as normal and if the problem persists (or doesn't decrease at all), come back on Monday to school and we'll try some other tests.