Link velocity settings

Satans_Apprentice

For tiers 2 and 3, how many submissions/verifications per URL per day do you recommend? I am also running tier 1 campaigns at multiple pages on one domain. The domain is 15 years old, a PR 3 at last check, and has a Moz domain authority of 50. It's also a corporate site. Any recommendations on link velocity? I've purchased campaigns that have dripped 200 links/page/month over 4 weeks without issue.