I spray everything the day before I hunt, (even though sawyers label says it's good for a few washings). Drying is limited to outdoor areas for me, my girlfriend is allergic to almost everything, and she claims that pyrethrins/permethrin bother her- so all my clothing hangs outdoors the night before I hunt. Im not a fan of damp socks early in the morning, and my boots are tall enough that my sprayed pants tuck into my sprayed boots.
I've gotten into the chiggers here a few times, once was particularly bad (close to 200 bites), but never during turkey season. They seem to be more prevalent in mid summer here when it's uncomfortably hot and humid. I know a guy who sprays and wears a pear of spandex biker pants under his camo. He hunts some of the same areas that I do.