BRS TV had a video that talked about this - generally speaking, T5s have better spread than single point LEDs so they recommend using the T5s as the base "fill light" for the full duration of your light sch (8hr, 10hr, 12hr, w/e). Then use your LEDs ramp up for that 4 to 5 hr of peak PAR.
I dont have T5s but do have reefbrite strips + single-point LED (ai prime) so similar concept. I still do enjoy the night time blue customizable viewing of the LEDs so my full sch is a bit shifted between the strip and LED while still maintaining the benefits of a the hybrid set up:
Run the strips from 9AM to 7PM for that fill light and providing that consist "enveloping" baseline light for the corals.
The prime LEDs ramp up from 10AM to peak 12PM to 5PM to push the PAR to 500+ to color those acros. The from 5 to 10pm a slow ramp down of the blues but fast ramp down for the whites then by 7 when the T5 shuts off the tank is ready for that prime time actinic night viewing from 7 to 10.