@sgpark & @Cam Thank you for the suggestion of Restrict Usernames. I will check it out for sure.
@Storyman I've gotten pretty savvy of going into the DB and clearing tables. I agree, the wfHits table fills up fast and I've never seen it or any other WF table self clean. I will look at WordFence Assistant and WP-DBmanager to help simplify this process.
My concern with adding plugins is both security and speed. I have some sites with so many plugins that it gums up memory and clogs the users experience. Yet, the other concern is, if we ask for various helps in one plugin, will we get the same problem with bloat as we would with using more plugins?
Thank you all.