I for one have the DB arf, one of the first ones , been flying it in spa always place in the top 1,2or 3rd place in a contest. I like Jeff am stumped as to why people are having problems many of these ARF's are at the spa contest people love them. Mine has about 200 flights, I have also built 3 Bridi or blue jay kit no difference . These pattern plane must be trimmed that take time , some times a week sometimes a month of a lot of flying. Just my 2 cents. Pete