That's fairly average 10-30% amber which is always a guess to the eye.
I usually wait until some of the exposed lower buds get some amber. Once they do you are probably 20+% or more in top. I pull Capulator Mac 1 clones anywhere from 70-80 days after flip. I enjoy it either way. Slight flavor change between the two and slighty more sedative when pulled closer to the 80 vs 70 days from flip to 12/12 but yield is practically maxed out at that point.
At this point now iv learned the cutting so well that I can pull it without a microscope typically. It gets a fried well done look once it's ready. That just took some experience. Not a big difference between the two. This biggest thing is being done enough to pull. Depending on how long it takes to see the first flower sites, usually 8-12 after flip. You can count your days. If it says 63 days pull it 63 days after u see the first little white hairs begin to form the bud sites up top. So over 70 closer to 80 days from flip for most strains that says 9-10 weeks. The bud will be good if pulled then. Granted health has been good. Yours looks healthy and happy! Good luck with harvest