Sounds good, I will give that a try with the step tablets.
I'm interested in why the blue filter separation needs the extra development. What exactly does it accomplish? (sorry, I'm pretty wet behind the ears when it comes to H&D kind of stuff).
When you 1st mentioned it, I thought I heard a bell ringing somewhere in my head.... check out this line from instructions for the Pinatype process, "The separations are first converted into positive transparencies. These, with the exception of the yellow, should be very soft, hence they might be made upon a color-blind negative material. The yellow image should be developed fairly hard."