Wait, you stir it AFTER the hot water bath? That's wild to me. I mean, I always figured if you let air settle out, the last thing you wanna do is mix it back up again and introduce fresh bubbles. But you're saying that actually works? I've gotta try that on my next project, maybe on a hutch I've been procrastinating on. I've always just done one rest after warming and called it good, but a double rest sounds like something that could really dial it in.

Wait, did @fisher.charlie end up doing a side by side comparison at the meeting showing the GPR data overlaid on the test pit results? That's what finally won over my local group when I had the same fight a couple years back. The old timers kept saying the radar was just a toy until we literally put the printouts on the table and they could see the big buried wall sections the pits completely missed. The chalky soil talk is real though, I remember swapping out every 45 minutes with a buddy just to keep our arms from falling off. We ended up renting a GPR for a season too, and by the end of it, the same guys who griped about it were asking if we could use it again.