Let's take a look at your triggers then...
QUOTE(Veritaserum @ Oct 13 2005, 10:28 AM)
This is for a X kill to Y mineral ratio
------------------------------
Condtions:
-Current Player Kills score is at least 1 of any unit.
Actions:
-Set Current Player Kills score to 0.
-Add 1 Death for (lets say Probes) for Current Player. (FOR LEADERBOARD)
-Add 1 Death for (lets say SCVs) for Current Player. (FOR MONEY)
-Preserve Trigger
-------NEW TRIGGER-------
Conditions:
-Current Player has at least X death of SCV*
Actions:
-Add Y mineral for Current Player*
-Subtract X Death of SCV for Current Player (i use subtract so that if they splash kill then they still get minerals for it)*
-Preserve Trigger
*Condtions/Actions with an asterisk mark are the parts that should be modified to change the kill/money ratio.
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NB: this post has been edited by in_a_biskit so that it makes more sense
I assume that's what you meant - if it's not, then please correct me.
If that is what you meant, then I understand why you're using deaths of SCVs, but the deaths of probe are unnecessary unless you want to manipulate the number of kills someone has - and note that you can't display deaths in a leaderboard. In any case, most of the time you can simply use Leaderboard (Kills).
Now consider that someone using your triggers splashed two units and killed them simultaneously. Because they both died together, your first trigger will not run twice for them; the kills score for each will be set to 0, and only one death of SCV will be added. That is, your triggers don't actually account for splash kills, if that's what you were trying to say.
The trigger that subrosian posted works in the same way to yours (except that it only allows for a Y:X (minerals:kills) ratio that is an integer), so has the same problem.
My post above said that if the highest possible kills score for a single unit is 400, and you have more than 400 kill points, then you must have killed at least two units in the one trigger cycle (you might have killed a lot more, in fact, but we can be sure of at least 2). My suggestion then was that at least sometimes, you would get compensated a little for splash kills if you used "subtract 400" instead of "set to 0". (Whereas your triggers and subrosian's triggers never compensate splash kills at all, as shown above).
Neither system gives perfect conversion - for that you look at the "perfect" method instead.