What's your RH? Looks kosher to me. I've had dense footage like that with no sign of rot, as long as you have plenty of airflow, specifically under her skirt. I do see some rust spotting...possible cal or P deficiency, on one lady. Love the mainlining, good job!
honestly, I would keep those but kick them to the side sort of and start new ones asap,,,,,and do a suprcropping tech,,,,maybe throw those under some flouros, for a little while maybe get some stretch in there?