How important do you rate your blue lab ph pen? I use strips which are "eyeball" readings and figure any fluctuations, within desired parameters, is okay, even desired by some. Is the juice worth the squeeze of a $75 pen?? Getting low on my FF trio nutes so if I'm gonna make the switch to coco I might as well change nutrients too. I can get Flora trio locally but coco will have to be online. I'll find out where my friend gets his. I usually top my photos and have had to defoliate them multiple times. Topped my last autos once and dying leaves took care of defoliating for me! 😞 I prefer the way photos grow vs autos. As always, thanks for your inspiration and support!