Hoyt,
I really appreciate that part about the PBO toxic stuff mixed in some agricultural versions.
What we "don't know" can hurt over time. The warnings on the regular sawyers stuff is scary enough! I often wondered/worried when I forgot to spray some article of clothing for a scouting trip, and sprayed it right before leaving the truck, and it hadn't dried fully, if I was at risk when I started sweatin wearing that garment!?
I have successfully used Sawyers and other brands, sprayed everything and line dried and it kept the ticks off, the chiggers and as stated, even skeeters hovered by my sprayed face mask, then just left! Yeah!