I like your attitude! Curating is important, and fun, and broadens your horizons with lots of interesting stuff to read. I try to curate as much as I can with my limited time, even though my Steem Power isn't really high enough to get much of a financial reward from it. Helping the community and putting myself out there is reward enough.

In addition to manual curation, I do use a simple voting bot. I simply don't have time to read more than a few posts per day, but I still want to help my fellow writers out as much as possible. So I don't really have any ethical qualms about using a bot. I have it set to only vote on a subset of people in my feed that I normally vote for anyway after reading their stuff (a.k.a. my favorite authors). And I'm constantly tweaking the settings to avoid having my voting power drained too much. Like you I always vote at 100% for maximum effect.

The bot I use is https://steemvoter.com programmed by @marcgodard . It's free to sign up & pretty simple to configure. No coding or tech skills needed. Here's a link to the latest Steem Voter blog post:

https://steemit.com/steemit/@marcgodard/steemvoter-com-update-oct-12th