Perfecto dimensions

Hi All Cruising the net the other day and came across a promo site for the Gordon & Smith Perfecto with most plan shape details. Here’s the site Cheers Holger

http://www.spsd.com.au/perfecto.html

wondering if anyone has used that 1/8" block method they wrote about? Is that a valid way to determine rocker?

Thanks for the address. great info for a begining shaper like me. Jon

JR - I thought it was a really nice presentation of the outline, rail and bottom details but the rocker stuff was a bit oversimplified. Variations on that rocker formula will simply result in different sweet spots.