#1, #2, #3 and #4 all stay back as handlers and stay roughly horizontal. #5 takes the middle and #6 and #7 go either side of the end zone.
#5 cuts constantly to try and get the disc.
If they get the disc they either look up field for a pass to the deeps or back to a dump pass.
If #5 isn't open, the handlers can keep the disc alive by doing dump passes and resets and can gain ground through handler movement.
With so many handlers, there should always be options.
The deeps need to be active and try and get the continuation from #5.
If a goal isn't scored, but the offence moves into the last third of the field, the offence should probably move into a vertical stack again.