I have seen it posted a few times in different places that people dislike the exceptional attribute rule from Palladium books.
The rule is if you roll a 16-18 you roll an additional d6 and add it to the attribute. If you roll a 6, roll the d6 again. and add it again.
The supportive problem is that you can never get a 16 as an attribute. Since 16 is the lowest attribute that gets any bonuses I have trouble seeing players complaining about this.
My easy fix for this is roll a d6, But count 6 as a 0. So you are rolling a d5 with a 0 on it. If you roll a 5 roll the die again and add it. If you roll a 0 the attribute stays as is. That is it.