RE: Impact
I personally would not trust using the GP laser incidence meter to set a fixed stab incidence. I strongly suggest getting Bob Noll's tape "Perfect Airframe Alignment". This is Volume 1, No. 1 of the "Absolute-Accuracy" series. There are many factors and measurements in setting the stab and wing tube correctly and this tape covers them extremely well. This operation is probably the MOST critical operation in building a pattern plane.
Bob is one of the top master builders and this tape allows you to learn his secrets. You won't regret it.
You can order the tape by calling 610-746-0106.
Good luck,
KeithB
PS. I'm not associated with Bob Noll, I'm just a very appreciative customer.