It works fine with Ross switches, the O22 switches need to be in good condition for this to be practical. Going through all straight path at reasonable speed won't be an issue, it's when you take the curve.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .