Switching spectrum during late flower

[Cactusreefer]

Afternoon! Need a little advice. So this gals been doing great, still is for the most part. Im starting to get a bit of yellowing/canoe fan leaves in the upper reaches of the middle of the plant. Pretty sure its light...shes grown within 16". The whites are a little too intense that close. Im thinking of turning the whites off and just keeping heavy red. Would there be any issue? Setup as follows:
Day 65 germ/23 flower
Mephisto Genetics Auto toofless alien
RDWC 5 gal
Phlizon 2000w (451 actual) COB LED full spectrum
Backing off nutes a little as well
Botanicare pro program
5.8 pH
1050 ppm
75 degree solution
2.0 EC
Tent 72 degrees, 46% RH w 2 oscillating fans
Thanks a lot! Im probably overthinking lol

 

[Phytoplankton]

By the looks of the "taco" leaves you've definitely got some light burn issues going, you could try turning the white/blue down or off and go with mostly red light. You can see the leaves on the edges of the plant seem to be fine. Give it a try, see what happens. The best solution would be to raise the lights, but sometimes it's just not possible.

 

[Cactusreefer]

Thanks a lot for the response. I wasnt sure if switching back would affect the final couple weeks, but I think those effects are better than the heat/light stress. Thanks!