Yikes, 4.9 was that new soil coming in that low?
I'd like to ask you other folks using the FF stuff are the buffers that hard out the gate or could we be looking at a pen calibration issue?
You got the right idea, applying some "Kentucky Windage" to get that soil pH fixed. Your 7.6 going in shouldn't be an issue but it's a little trickier to set a particular input value and expect a specific output value back.Whether you need to go up or down, I would suggest you just decide on a safe input number and work longer with more water than use an unsafe input value to correct. Hopefully that makes sense.
The concern is if your pen was off... if that 4.9 was really a 5.8, then that 7.6 water you put in would have really been 8.5. I've had bad pen experiences so I have trust issues. independently test some water with a pH test solution and then see what the pen says.
On a separate note, I appreciate the compliments but I'm no expert at this shit and if I come across that way, mea culpa. Most of what I have to share is rather simple gardening advice, and if that helps anybody else, that puts a smile on my face.
You don't want to put me on a pedestal. What's the lyrics from that Tool song? I will elevate you.. Just enough to bring you down