Guesstimate harvest time?

PurpleBerry bag seed 6 and a half weeks from first bud devoplement. Well I waited too long and I tried to order a loupe but can't afford shipping to get it here before sept. My estimated harvest day was August 11th, can some one advise me on if I should wait longer or sooner. Also my top main cola bud looks way behind in pistil color development And pistil curl back than my 4 corner buds and mid cola. All opinions and advice much appreciated

Push her out to get more weight @ least 2 weeks. Not all pistils will turn color or triches go amber. You can pickup a loupe at the local swapmeet so there is no reason to " order " one. Get at least a 30x power. Buds are developing nice but if you are going to go by a breeders estimate , you are always lose potential. Breeder estimates are for LAB PERFECT conditions not the real world setups like everybody else.

Week 6 is still early. I don't count PREFLOWER time . You have a few weeks easy.

@Budzbuddha
You don't count preflower time...so on a 9week strain do I count from the flip or from when buds start?