Share 'Breaking in Plastic'

I have a Champion Wraith that I bought a couple of weeks ago that I have thrown in action about 12 times and maybe another twenty during field work. This thing is still too overstable for my liking, is there anyway to break in Champ plastic that doesn't include banging it off of trees. I would like to get to the point where I know if this disc is too overstable for my bag.   Will carrying around…