I have reserved time with the editor starting July 1st. Assuming she stays on schedule, I'll be sending her the semi-final book then.

So I am hoping for three weeks for beta. All major issues/changes should be resolved by then.

However, I still expect to get feedback on and off with people in July. If we discover late problems, we deal. We can deal up until publication deadline.

I just don't want to change stuff that the editor has already edited if it can be avoided.

Technically, I can change the ebook at any time, but Dead Tree versions are what they are at the point someone buys them. So I don't like changing what's been published significantly (e.g. only 'bugs' should be fixed after publication)