Howdy Ned,
The scoring program used at Mule Camp is SQScore,written by San Quentin,which is what you're probably using. The scoring program sold by SASS,Scorecard,still requires that misses and bonuses be calculated by hand before the times are entered into the computer,whereas SQScore does the calculations for you.
I'm not a big fan of total time scoring. Rank scoring rewards consistency-one bad stage can be overcome by five good stages.
Bellicose Bill