LL is always a bad decision for a woman of an average height. Because extra height is not an advantage for women if they are about average.
At least stick to 5 cm. You don't need more than that and it won't even look good. 8cm for tibias is a recipe for disaster, specially when you won't have any benefit by doing it, you will look worse aesthetically and your physical abilities would be permanent reduced.
So keep my advice, don't go over 5cm. You will only lose after this height.
If you were a man or a very short woman I wouldn't be so strict but not now.
I am not fearmongering here but I've encountered with many men into tall(but of course, you also gotta be slim lol) women, including myself. A woman being average in height is okay but being tall is better and I think many men are into tall women. It is also why a woman gotta be tall to a model instead of being short(there are short models though, but the majority is tall).
I think the affinity to tallness is not exclusive to women.