One distinction I don't know if it matters, but many discussions fail to mention at all, is the distinction between telling a lie and maintaining it/keeping the secret. Many of the epistemic arguments seem to disappear if you've previously made it clear you might lie to someone, you intend to tell the truth a few weeks down the line, and if pressed or questioned you confess and tell the actual truth rather than try to cover it with further lies.

Edit: also, have some kind of oat and special circumstance where you will in fact never lie, but precommit to only use it for important things or give it a cost in some way so you won't be pressed to give it for everything.