In the section I'm doing. I will be doing 9 sections so will be tossing the flakes after each section. but I picture them getting onto the bare concrete and wondering whats the best way to handle that? thinking a quick shot of the leaf blower but wondering if it will put a ton of them on the edge of that section?
Tape off large sections of the bare concrete and use a plastic drop cloth to extend the border around the places you're tossing chips.
Or, if you can keep doing section after section: don't toss chips up to the edge of the section you just worked on; wait until you've done the neighboring section as well and then toss on both areas. I.e. don't let your chip tossing get near the bare concrete.
Worst case you can vacuum up the excess chips on the bare concrete before laying down your next section.
I am doing sections as well, but I'm not using any chips.