Logic Pro 11: Off-setting Latency Dilemma

[tommyzai]

I've been experimenting with latency off-set/adjustment in Logic Pro 11. I'm confused.

1. My two track loopback test indicated a negative latency of -48 samples . . . overcompensating.

2. RTL Utility indicates a latency of 390 samples, but interface is reporting 429.

In short, I have a reverse latency issue of recorded audio being slightly early by somewhere between 39 and 48 samples

Any thoughts on how to dial this in a little more accurately? I realize this is a small amount; yet, I'd like to get as precise as possible. Thank you.

PS> This is the second DAW I am working on at present.