You may want to ask him in an email or PM, his thread was 5 years ago so he may not lurk any longer? My smith was a bear on the ground but once off the ground it was a good little plane. Another club member made up his own LG with shocks and toe in, his had much better ground handling then mine.To get the correct CG I had to use a four stroke or I would have needed to use a lot of lead.
As I recall the story of the Smith, there was one full scale built and SIG bought it and just copied it to make the kit. Been a long time sense I read up on the plane so I may be wrong about that but I think not??