The highest buds do not have the highest chance of pollination!
The highest buds get the most growth hormones/auxins, this is why they grow the tallest.
By keeping the canopy even with LST, the growth hormones are more evenly distributed throughout the entire plant, that is why you get multiple (main) colas.
Selective leaf "tucking" is my preferred method and I would certainly not advocate removing 50% of the leaves right before flowering, this is exactly when the plants energy requirements soar.
I would not remove any more than 5-10% maximum, if any.
Just remember........
Less leaves = less energy being made = less potential growth.
Let Low Stress Training be your friend!
Get her growing horizontally out, like in a fan shape, rather than straight upwards.
You can keep up with LST until about the second week of flowering.
Go easy on the feeding too, she is very (nitrogen) green, which can turn into a problem quite quickly and can also lead to overly leafy buds.
Good luck and happy growing!