Did you not read my suggestion?
Pre pinns that have the standard in their inventory are OPEN to pk. They loose their pk shield from higher and lower players.
so you tip the scale to the pinns now, they get to abuse it.
They grab the standad, the lower ranked tries to return (we all know the altar is way too weak) and they get made vuln to pk and totally STOMPED. Or, even better, the lower ignores the standard because he doesnt wanna get slaughtered and looted, so the higher lvl characters get to enjoy the boosted cp gain. OR, the higher grabs and the lower returns...repeat that process a few times and your dining on free cps again.
Either way, you open the system up for abuse.
The only real way to effectivly allow pre-pinns (at more than the current rate) into cabals without creating an inbalance in cabal wafare is to not allow them to intract with the standard at all. The standard CANNOT be grabbed unless there is a pinn on in that cabal, and the standard can only be held by a lvl 50.