Yep go for it, another few days won't make much difference, apart from THC breaking down into CBD and CBN, giving you a more dreary type of body stone, which some people prefer over a more mind tripping head high.
I would be very happy to harvest them right now, no point saying yes this one is great, this one give another 3 days, and that one should have been 4 days ago, just get in there and chop so you can get ready for the next lot.
Once they have 95-98% brown pistils they are at their peak and it is all down hill from then when it comes to THC levels. This stage of ripeness/maturity will also put you in the zone of 10-30% amber trichomes without having to look.
No point dealing in tiny. tiny details, they all look as though they will blow your socks off!