I have been thinking of picking up some Pyro Pellets. I use T7 pellets. What are the Pro's and Con's comparing the two? I know the Pyor Pellets have a "starter end" Black powder,that must be inserted towards the breech. Also I would guess the Pyro Pellets are "dirtier,than the T7 pellets". Let's hear your choice,and why you like one over the other. Ron