The 1-9 number system is fine...You just have to get everyone to use it correctly. Decimals, half points, adding numbers are all bandaids. It eventually heals wrong.
You give specific language for comparison on EACH OF THE CATEGORIES and each number...and then enforce it. Only then can change occur.
Examples
Appearance - ALL ENTRIES
9. Excellent Example- Looks better than the top 3 of this meat ever seen in your life
8. Very Good Example - There is absolutely nothing visually you would do differently - mouthwatering
7. Above Average Example - Well balanced color, Pleasing to the Eye - alluring
6. Average Example of Meat - Slightly off balanced color, Pleasing to the Eye, tempting
5. Below Average - Off balanced color, Pleasing to the Eye, appealing
4. Poor - Off balanced color, appetizing
3. Bad - Color not good, Not appetizing
2. Inedible - Color not good, Not appetizing, Don't want to put it in my mouth
1. DQ
Taste - ALL ENTRIES
9. Excellent Example of Meat - Tastes better than the top 3 of this meat ever eaten in your life
8. Very Good Example of Meat - There is absolutely nothing related to taste you would do differently
7. Above Average Example of Meat - Well blended spices, sauces, and flavors. Everything is balanced.
6. Average Example of Meat - Spices, sauces, and flavors are balanced but a single flavor is pronounced
5. Below Average - Spices, sauces, and flavors are balanced but a few flavors are pronounced.
4. Poor - Spices, sauces, and flavors are slightly off balance and a few flavors are pronounced.
3. Bad -Spices, sauces, and flavors are out of balance, multiple flavors are pronounced.
2. Inedible - Spices, sauces, and flavors do not go well together, most flavors are out of balance.
1. DQ
Rib Tenderness
9. Excellent Example - Perfect bite mark, clean bone, no meat falling off bone, very juicy, tender
8. Very Good Example - Perfect bite mark, no meat falling off bone, juicy, tender
7. Above Average Example - Bite mark in meat stays without meat coming totally off bone, juicy, tender
6. Average Example of Meat - When bite is taken meat pulls off bone, juicy, tender
5. Below Average - When bite is taken meat pulls off bone, a touch dry, but still tender
4. Poor - meat falling off bone or slightly chewy, juicy
3. Bad -meat mushy, tough or very dry
2. Inedible - meat mushy or tough and totally unappetizing
1. DQ
And so on...and so forth.
In order to create variation in numbers, specific goals and definitions are needed...not more numbers
JMHO