I don't quite get, what you mean. Usually you roll Attribute dice and add the skill value anyway, so I don't quite see the change.
Example: A character with Coordination 3 and Energy Weapons: Phaser 2/ 4 would roll 3 dice for Coordination, take the hightest result and add the +4 on the roll in case she fires a phaser.
Usually Edges like Dexterity and Reaction add dice if appropriate but we have a house rule that it adds a point like a skill, if the player chooses - which makes attribute tests easier.
But besides that I don't think the dice-system needs any fixing.
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