It's up to you whether to try a smaller split dose in the later part of the day to help with morning pain. A lot of us end up tweaking the dose and timing till it works, and sometimes the improvements are more gradual than we would like. And with every reduction there could be some small increase in morning aches which may take a week or so to resolve. Do you keep a daily note of the level of morning pain and aches you have, along with the current dose? I've found it useful to see what helps and what doesn't.