Yeah, i were on the 'glass' one take off and one little insect in the pitot and NO glass....
Maybe you need a better supplier of your glass. One little bug up my pitot coming back from YHBA one day, and it was all OK.....VA Captain beside me was mighty impressed. We fried his ass with the pitot heat too!
Took some removing when we got back.
So, not all glass is created equal