For a total of >8.8htu.
The math is a 100% vote reduces mana by 2%.
You can give out just as many votes as you want, it will put your mana in the basement, but you can.
But, if you keep your mana over 90%, instead of 21% like you are now, you will grab a larger share of the pool.
You can view this by hovering over the 'stats' icon.

You could be giving out .9htu votes instead of .2htu.
But, you do you, that difference in some small part comes to me.
Mostly it goes to the top 20 accounts reaping the pool.