e,

As far as cost benift you were finding really alot of factors last year. Alot more than I expected. The cost benifit really comes in when you look at how many factors you find per unit time and in that unit of time how many tests could have you done.

The ratio although some could argue should be 2 factors for every 3 tests... Yup really!!!

For the simple fact that we will probably test each k/n pair twice.

Where we were before is probably around a 1:1 ratio if not more. This ratio was totally sub-par, since we could factor tests out quicker than we could test them. I'd say stick with the P-1 for no and look at the time requirements. Besides we could always use those CPU' sin the testing fold if that's where they are best suited.