That is one problem with the technique—part of why it works is because you are speaking in a rhythm, so how can one achieve fluency at the start of a sentence when no rhythm has been started? The answer is you have to find some other way/technique for the start. I “default”/relax (don’t pre-form), diaphragmatic breathe thru my nose, breathe out through my nose, then speak on that out breathe. When you get good at this it’s fast and not noticeable—also breathing before you start a sentence is normal…not for us though