Prebanpaul,
It is considered yelling when you have the cap locks on - internet etiquette says to post in lower case and use the caps for emphisis or when you intend to be yelling. It also makes it hard for my old eyes to read. (end of etiquette class)
Now, about the mercury recoil reducer: They are as good as or better than anything else available. They work in two ways, they add mass which slows down the recoil and they add inertia in direct opposition to the recoil that you do have. To sum it up they work about twice as well as just adding weight to your gun.