I just permanently bonded the Horizontal stab on. I took every 
precaution to get it within the 1/2 to 1 degree of negative incidence 
that Lancair specifies.  I used the water level to come come up with 
the proper incidence based on the plans.  After cure I recheck my 
incidence and Im 99% sure I have somewhere between .09 and 1.3 degree 
of negative incidence

My question is:
If the Horizontal has more than 1 degree of Negative incidence, say 
1.5 or higher,  how does that affect the flight characteristics?    
And vice versa if it doesn't have enough negative incidence what does 
that do to the flight?

Bryan,

 

Listen, I cut out the form to check for -1/2 degrees of incidence while using a old fashioned level.  Then, during the building process, I got a digital level.  Wanting exactly -1/2 degree, I used the form and the digital level - uh, the result = -.9 degrees.  It works for me - the fastest 320 around.  I hope someone with an even greater negative incidence replies as I would like to fly along side such a configuration.  Any way, at 8500 MSL, WOT and max power mixture (85% gross wt.), my longeron was at 0 degrees, just like the designer drew up the plans.