Use a scrog ~6" above rim of pot -- or as close as you can get that still allows you to easily irrigate. Don't make daily life a pain in the ass, lol.
Instead of using it for support, use it to train branches horizontally until they are in a proper position to grow vertically, at that point, flip to flower. Now, all you need above the scrog is the expected height you normally get from flower stretch. any horizontal training is conserved height. You can even flip to flower while still going horizontal, and that will reduce resulting height even more. Don't over-do it or it will impact yield at some point.
have a plan for you canopy. Shoot for 3-colas per sq ft. This will maximize yield and avoid overcrowding canopy, which will reduce the effort and time needed to mitigate such things. A well-managed canopy should require little to no defoliation for airflow or light penetration. Space them out as well as you can and ensure leaves fully cover light foot print -- good results will happen like clockwork after that... assuming they are healthy, of course.