No I have not tried to heat that tap.. The results were better with the 910 than the 645. I have also printed in PETG and will probably also do ABS. There is no mechanical reason to use nylon for this part, threads just have to hold up. I would much prefer a bass insert but the person who want this part does not want the added bulk. Just figured if you were looking for a material that what tough 910 prints like PLA.