Thanks David BTW I'm a huge fan of your Guillow's RC conversions. Your posts really got me interested in learning to fly 4 ch RC. My RC flying has gotten better. I think I like rubber power FF a bit better. I am glad I did learn 4 ch RC flying though. I hope you do a FF build soon. BTW I use foamies to train with. I have had go luck with this WL Toy's plane. I crashed and re glued it several times but it keeps on going.
As for the 500 series kits I did use contest Balsa but I did not use any lighting techniques. Instead of laser cutting the 500 I think Guillow's should add more kits to the 900 series.