Double diamonds are too weak. It costs 120 CP for 200 double diamonds, which only benefits a single person or couple. I think it needs a buff so it will benefit the alliance as a whole rather than the first person to buy it. Something smarter would be; After buying double diamonds the entire alliance will have double diamond drops at all RI's for the next 30 minutes. Maybe that's too strong or not strong enough but it should be put in a format where it helps everybody over one person.