Good point- will doDrop it in the tank for a week or two first and give it time to acclimate to your parameters.
I've found trough experience that if you cut it up and glue it down it doesn't last too long.
If you give it a few weeks to adapt before the cut and paste it tends to fare a boatload better.
And, if you've got a tank that doesn't support GSP for whatever magic reason, you don't have to scrape dead stuff and dry cyanoacrylic off the back wall.