I am a FF Commissioner. I have 3 ideas to improve scoring
FIrst, please add a Fumble Return for TD category like you INT Return for TD. This should be a negative scoring play for offensive players.
Secondly other sites let the commissioners manually input the points for yardage allowed and points allowed for def/st. For example at 76 yards allowed its 12 points. 151 yards allowed its 10 points and the same type of ability with points allowed. Let the commissioners input those paramters.

Hi John,
Thanks for your feedback.
We will pass along your request to our product team.
There is an option in the commish tools when editing the scoring settings to assign point values for defensive yards allowed. You won't be able to pick specific yardage, like at 76 yards, you will have the option of 0-99 yards, 100-199 yards, etc.
Thanks,
Product Support