Getting ready to roll an Obsession out of the hangar for the 1st time. I started this kit 2 years ago and now just getting around to finishing it. All that is left to do is weigh and balance it. I am using an OS 120/pumped with a 15/8 prop. It feels heavy the only thing I added is an onboard glow system and went with the two servo rudder set up. I need to find a scale that will give an accurate weight. I have read some good and bad things about this airplane. Any tips I might need to know before that 1st flight? How are some different ways to weigh and balance an airplane that size?