> You are correct. The 7 has minimal negative removal
> value (-.04) according to Walker. But what if you
> modify RPC and make 7=0 and make 8=(-1). Seems to me
> that may solve the problem. Any thoughts Mr.
> Schlesinger?

Yes, yours seems like an intelligent alteration for SP21, which is not to say that there may be even better level-2 counts, more suitable for this.

Don