Here is the fourth one of these I've built. It is loosely modeled after a Reno racing AT-6 #90 "The Undecided" from a few years ago. It took me three days from frame up to cover and than a day or two for engine and radio. It has a K&B 20 with an 8x5 APC which turns well over 16,000. We race them here in Socal and they are great fun. They are squirelly on the ground and shimy through the turns but I love flying them. Keep the throws low, only about 5/16" elevator and don't pull it off the ground untill you have some good speed or it will tip stall. At the weight you mentioned it shouldn't have any bad habits as long as you gave it the washout called for in the plans. Mine came in at 2-1/2 pounds which is the minimum allowed for our races. Nice job on yours, enjoy it.