longjohn - Not funny at all. Actually it's an intelligent suggestion... my wife suggested it yesterday herself. A glass cutter can't be used because of all the plastics they use during manufacturing. No 'glass' to cut, just very tiny shards in a sea of plastic and what feels/acts like, concrete! This stiff is more like cutting stone than it is cutting glass.
Important Note:
For anybody who is contemplating using modern glass wrap to cover a set of drums as a DIY project... DON'T! Pay a professional to do it.
I just got off the phone with the guy who cuts all the wrap at Precision Drum Co. (George) When I asked him what I could use to trim the wrap he told me that, they use special shears to cut the wrap. I told him the wrap was already on the drums, so I am unable to trim using shears, special ones or not. He then recommended I use files to trim the wrap back to the bearing edge. I told him I had already done that on the rack tom, but that because of the thickness of the wrap, I an unable to get heads on the drums. At that point he told me; "You'll have to send them in to me, (at Precision,) so I can cut back the wrap here, where I have the proper tools."
He told me that there are no tools/cutters I can buy to do the job myself. In other words... not a job for Do It Yourselfers! As long as I'm willing to pay for shipping both ways, Precision is going to trim the drums for me for free. He's going to cut the wrap back 3/8ths back from the bearing edges so I can put heads on the drums and tune them properly. But it is taking an expert and specialized shop equipment to do it.
So, let all be warned! Glass wrap = extra expense and the use of professionals. Not a DIY job!
I'm going to ship the shells to Precision tomorrow or Monday, the latest. I'll keep everyone posted.
Hope this experience helps somebody else out in the future...
John