Goodluck.
Even though all over Internet that not many zoas actually have that much palytoxin and usually a certain kind of paly that doesn't grow in mat form but has single polyps not attached to a mat etc etc ,I'm no expert and lots articles out there explaining which ones do and which don't or at least gives you clues what to look for to have a more educated guess.
Don't think it would hurt to wear the appropriate ppe like goggles,mask,gloves etc especially if taking zoas out the tank and cutting just incase aggrevate them that much they decide to squirt you etc,as we all different sized bodies and can be more sensitive to some things than next person.
But to anyone reading this,best thing to do if any questions regarding palytoxin is read some articles from the professionals and get some off their knowledge even if say for example I cut 100's off zoas and never had any problems and advise everyone to just go ahead and cut their zoas as all will be well etc ( which I'm not advising that,always best do some research and read some articles and even watch some YouTube videos on ways to do it safely and what ppe ( personal protective equipment ) to wear .
Thought best state this before get replies saying I said something wrong ha ha