No one mentioned the magic install way for those hogue handalls... Very well known on all the forums...
The SHield is small, so it may not be that hard to install..
However, in general, the best way is to boil water.
Once boiling, throw the handall into the boiling water for 1 minute. Remove with tongs and throw it on a towel. Wipe off all the water quickly, and then grab it and start installing.
The heat makes it stretch (it will just be warm to the touch once you get all the water off of it).
Once installed, it will shrink as it cools, and then it shouldn't move.