This is how each of the judges impacted your results
989 - 33.70
888 - 32.0
977 - dropped
898 - 34.30
889 - 33.14
987 - 31.42
As you can see, it is the last judge (987) which had the most negative impact. Since the judge gave you a 9 in appearance, and an 8 already in taste, tenderness is what hurt you with them. If you had even bumped it up to 988, that would have improved your overall score to 165.70 (one place higher).
Now, let's say that you were able to only focus on tenderness, and get each of the judges to score you 9 in that area, while leaving your appearance and taste scores the same. You would have a 169.1312, which is now 17th.
If you are consistently getting 8's and 9's in appearance, and 9's in tenderness, you will be giving yourself a great shot at landing on a table of judges that not only finds your taste to be "non-offensive" but really enjoys it, and then you will be getting a quality call