I have never done what you did, but I will speculate that it may be beneficial to wait until the hones are fully (mostly) dry BEFORE lapping them. Otherwise you may find that your newly lapped hones still are not flat after they have dried more.
You will find that they do best if you treat them in the same manner each time. Either lap them after you have finished honing, or lap them after they've been wetted but before honing or whatever. Just be consistent in your approach.
Oh, and in the future remove all hones before fishing!