I will try to splain to you with pictures.
I had water handy in case the plastic got hot, but it never even got warm.
Yes I taped a towel to the sander support
Been contemplating cutting mine since I read another's post on same subject, but too nervous to do it. I didn't even think about cutting from the bottom. Thanks to your post/suggestion, I'll be cutting tomorrow, ...from the bottom!
A plus ..have a person hold the shield. you cut w/ dremel like your pinstriping rest one finger on shield that hand holds dremel. sasety glasses for each..