Mighty Wash Question - Late in Flower

So I began flushing last Thursday and noticed annoying spider mites on Saturday evening starting to web up on the tops of a few colas. I gave a full spray with mighty wash to the entire room on Sunday and reapplied again this morning to the areas where webs were forming (roughly 5-10% of garden affected w webs). Lights came on today and all the buggers appear to be gone and the buds that have webs are cleaned up. My question is I have seen some posts while researching that discuss possibly using a PM wash after the might wash. I was going to wait until Wednesday to give the problem areas one more spray with mighty wash. Would it be best to also get some PM Wash to use after? what exactly does it do and is it safe to use one week before harvest? has anyone used mighty wash late and have an idea if it makes a difference on taste? would it be best to not spray again since they are no longer forming webs? I was hoping if i sprayed on wednesday one more time and gave it a full week without any other sprays that i would be good by harvest but from what i've read it may be best to use a PM wash last. any opinions or tips are appreciated.

i'm growing indoors. 4 1000W HPS - 3 very large plants filling 12X10X9 room. watering every 3rd day with 4 gallons of plain water. flush stage of flower - roughly day 60. plan on harvesting a week from saturday.

I have been dealing with a little mite problem myself and also use Neem as a general cleaner that is both a pesticide and a fungicide that is as far as I know totally organic, I know a lot of vegetable gardeners that use it on their produce. My logic is Mighty Wash works really well but is also pretty nasty stuff that seems to take some of the color out of leaves, so I try to use it as little as possible. Also, I really hate spraying plants in flower with anything, including water, it doesn't take much moisture to get moldy buds. If you think you've killed the little fuckers then hopefully you don't have to spray again, on the other hand, if you do have to spray again you want as much time as possible between then and harvest. It's quite a paradox. I'm sure this wasn't helpful at all but good luck.

thanks sikki. i use neem in veg and up to 2-3 weeks into flower. once the buds start forming, i have used mighty wash with success. just haven't had to use it this late in the game before. the strain i'm growing(sour diesel) has been known in my circle to attract bugs but didn't have any issues until now. i'm thinking i may just try to hold off now since it appears i may have cleaned em out. i wasn't a fan of spraying anything on em this late but seeing those webs dissapear makes me glad that i did. i'm just wondering what the residual effect the stuff has. i have 5 fans and a filter circulating and have sprayed as soon as the lights go off to give plenty of time to dry. fingers crossed they don't come back.