is it a factory install or did someone just add a short center log in front of the transom pod? I have seen quite a few unhappy folks that have tried this themselves and found out how bad the performance can really be. Logs in front of the pod, not installed by the manufacture can cause prop cavitation and greatly hurt performance. If it's a south bay install, you can most likely trust it. You will always get performance out of a center log with a transom built into the log. Just some food for thought.