The Case of The Vanishing Inked

I wanted to like this probe, the performance is average but acceptable and I liked the Inked design (the look of glass toys are a big factor to me). However, the design peeled off as I was tested (albeit under odd circumstances)which raises some concerns. Temperature seems to be a culprit in this, making me hesitant to recommend boiling or temperature play with this (two normal pros of glass toys).