Well, let's see...
If you buy some vinyl cling, you don't have to ditch your cushion from your SU! stamps. Just adhere the cling to the back of the sticky cushion and it will let your stamps adhere to acrylic blocks.
The other suggestion I have is to get a Hot Knife. With a Hot Knife and a glass mat, you simply trim your rubber to the size you want, put it on your EZ Mount and use your Hot Knife to trim the EZ Mount away...it goes through it like BUTTAH! No more horrible sticky scissors from trimming the EZ Mount. I just got mine last week and have been mounting stamps like mad!
Here's a tutorial on how it's done and a place to buy the Hot Knife:
http://www.sundayint.com/index.asp?P...S&Category=236