The entire strip process is based on doing the best you can and accepting the results. It's really hard to screw up a stripper as far as performance or the builders intent. Get your forms as fair as possible with out any flat spots or bumps. What's more important is getting the distance between the forms on the money and trying to get them perpendicular to the strong back and not angled. Most of the time when builders find strips are not quite hitting forms perfectly, it usually one of those two things and not the form itself. Don't forget, the distance between forms is discounting the thickness of the wood you use. The computer sees a form as a thin piece of paper and figures the distance between those points. Keep sighting down the hull for fairness and make sure your bow and stern ends are straight.