Bryan's trim article is part of the R/C Aerobatics column that appears every other month. Bryan supplied the information to Al and AC Glenn for them to include as part of their article, but it got split up into 3 parts. I think it started back in November or something like that. You can also find the full text of the article at [link=http://Bryan's Website]www.hebertcompetitiondesigns.com[/link].