I was thinking about getting a limbsaver slip on pad for my Remmy 5R. What ever that thing is that came stock with it won't work. It's less than or right at 1/4" thick and hark as a rock. If I get a slip on limbsaver, do I need to shave off the existing pad or leave it and slip the limbsaver over it? If I just slip it on over it do I need to glue it to the existing pad? Thanks for the help