If you have a great amount of expo, a great stick travel could lead to a little elevator throw. For CG, I prefer the following well-known test: 45 deg. climb with throttle applied (the amount used to trim for level flight) then do an half roll and let the plane go: it should follow 45 deg climbing line, with tendency to falls down.
How did you know that? Yes, I do have a lot of exponential on the elevator. I did that for the first few flights. I will try the 45 degree test and let you know what happens. If the CG is correct I am assuming that it should hold that line for a short time before dropping or nosing over or would it just lose altitude in the 45 degree roll attitude since my current engine/prop will not give me unlimited vertical climb?