Cadillac is top of the line, but you may be too young to remember those days! I suppose now it would be a Hummer!! lol
2 tsp. salt and 1 quart water are the standard recipe. Are you large? You may try adjusting the salt upward and see how it goes. Another commong problem is dehydration. If you are not getting enough water you may retain the swf. Another possibility is colonic congestion. A plain water enema should relieve this problem.
There is nothing quite like the swf when it works, which it should! About an hour later it exits in quite dramatic form... not for the commute!! Are you drinking a cup of strong herbal lax tea the night before? That would certainly help.