4K wisps isn't as hard as it used to be but 100% deli sure is tougher than 80% deli. Here is my pob: https://pobb.in/ClO-wo0yO6sT for reference, it has pinnacle uber config which is similar to these t17 bosses. I am here to answer your questions if you need help! I get notifications to my phone and can answer ASAP.