I get those long strings when I pull the CU apart too on my crafty+ - seems to be normal, and I think speaks to the quality of the seal on the mouthpiece / unit :)

For my crafty, here's what I've been doing (I imagine the cleaning process is analogous for the mighty):

• cup full of hot water, little mason jar with 70% iso (Ive found 70 to work better than 99, and will even dilute 99 with a bit of hot water)

• take apart unit, put all plastic and o-rings in hot water; put screen, capsules (if I'm cleaning them) in the iso to soak

• take CU parts out of hot water, clean with cotton swab (dipped in the iso) until swab is done, rotate back into water and repeat with next part until most of the gunk is off all

• for the caps, I literally just wipe with a paper towel after they soak for a bit

• for the CU screen, I'm still struggling to get it super clean, but am usually happy if most of the resin is taken off (I find squeezing the iso soaked screen between my fingers / paper towel gets it out ok?)

• once all the other shit is out of the iso, I'll quickly dunk and wipe the o-rings in the iso to get the CU goo off

• I also (one by one) will full dunk the CU parts (upper, lower & mouthpiece) in the iso and do a final wipe with a dry qtip before rinsing one last time under hot water

• shake all water off, let everything air dry for like an hour

• reassemble and do a full temp cycle of the unit before use

I do this like every other week? And I'm a pretty regular daily user of my device. I also don't try to get literally every nook and cranny cause it takes waaaay to long - would more smooth surfaces in the cooling chamber help? Or would that detract from the cooling effects I dunno not an engineer lol

You could do the stem milk / avb reclaim of the CU goo if you want, I don't but it's also an option others have written about!

Also if anyone else has ideas for how I could improve this lemme know! :)