ePMP 4600c PTP - Which mode is better?

I recently put up a 4600C PtP link and have it running ePTP mode. Right now I do not need frequency reuse, but was wondering which PtP mode is best.

Should I stay on ePTP or move to TDD PtP in flexible mode? What are the pros/cons of each if not needing sync?

I see if using TDD PtP mode I can take advantage of Asymmetric Uplink, but I assume I would deal with higher latency than Balanced mode of ePtP?