I have built 2 Goldberg Cubs, they were not laser cut but that was about 10 years ago. I am getting ready to order a Sig 1/5 scale in a week or so. If you want a more scale looking bird go with the Sig. I am sure the building time will be longer but you will be much happier with the finished results. The Goldberg is a stand-off (way Off) scale. You can make it look good but it takes alot of modifying. The Goldberg is a tough airplane and it does fly very well!!!
Good Luck!!
Anthony