No, this is 100% battle tested. I can't drop numbers but we just did a study at work comparing referrals to non-referrals... its night and day. Referrals are out performing across the board. the only problem is that eventually you run out of referrals

>> Referrals are out performing across the board

I expect a lot of that is due to the referral being familiar with an already ensconced employee, as well as the referrer being incentivized to ensure the referral's success.