Zeagles are supposed to be tuned so as to not leak with the resistance knob turned fully CCW (for least breathing resistance). I've seen Zeagle second stages that won't leak when initally set up, but will leak slightly regardless of where you set the orifice or the adjustment knob once you've actuated the demand lever several times. The fix for that is usually the poppet spring, but by no means is that the only fix. Just about any of the moving parts in a second stage can cause this problem and some non-moving but adjustable parts, too.
If your Zeagle was serviced under warranty the dealer must retain the used parts to return to Zeagle for free replacement. The dealer should at least show you the used parts kits when you sign the form stating you are the original owner.
A caveat here: tuning second stages is always a balance between ease of breathing and slow leakage. Sometimes a reg will test fine on the bench and come back from the first few dives with a slight leakage because we set it up a little too "easy". I don't like a hard-breathing reg and I don't think many of my customers do, either.
If your Zeagle was serviced under warranty the dealer must retain the used parts to return to Zeagle for free replacement. The dealer should at least show you the used parts kits when you sign the form stating you are the original owner.
A caveat here: tuning second stages is always a balance between ease of breathing and slow leakage. Sometimes a reg will test fine on the bench and come back from the first few dives with a slight leakage because we set it up a little too "easy". I don't like a hard-breathing reg and I don't think many of my customers do, either.