Do These look Ready to Harvest?

I made the mistake of chopping too early last time and I don't want to repeat the same mistake! These are Hell's Angel's OG kush at day 68. There is a lot of yellowing of the leaves and the hairs have mostly turned red.

Look ready?

Looks ready if you ask me!

hey man i would really suggest going to radio shack and buying one of the small microscopes mine goes from 60-100x and has a small LED for light.
that way you can judge by the trichome color and not guessing based on misleading factors like leave and hair color. when the trichomes are all cloudy and some amber you know your at the sweet spot. the micros are about 15 bucks tops.
just my 0.02

Are the pistols on the main stem falling off?

looks good to go

ok well I got a 60x mag from radio shack and just looked at them. The upper buds are cloudy with some amber, but it almost looks like the lower buds are somewhat clear. Should I wait a few more days and hack on day 70 when I was planning to? The leaves are really getting yellow and dying off. Wait or hack now?

You don't have to take the whole plant at once, take off what is mature, like the main cola and leave the rest to grow and mature a few days later.