Kind x750 using uv/ir during flower ?

I’m about 4 weeks from finishing up a run of autoflowers . This is my first run with this light. For the past 2 weeks, I’ve had it on 75% on full spec , and 25% on the uv/ir for 1 week then upto 50% the last week . My question is , should I be running full spectrum and the uv/ir together late ? Can I crank the uv upto 100% , and lower the IR /UV to help trichome/resin production and bud density ?

they’re supplemented with lots of co2 , 18/6 light cycle - and 3.5EC . They’re in coco loco/perlite in autopots 9 gallon . They hammer about 5 gallons per day , I just wanna maximize my potential

I meant raise the UV/IR to increase not lower