I have a question related to the M20R. I see that we can change the Center of gravity %MAC (which basic setting is 10.3) but I don’t really get what it is and how we can calculate the proper %. I realized that with this setting, 1 pilot only, I have to pull the yoke a lot in order to maintain altitude at 80-90Knots during traffic patterns. Is this normal behavior of the plane?
I recently chang the %MAC to 25% and I didn’t have to pull it so much anymore.
Are you trimming it for 80-90kts?
I don’t fiddle with CG settings and don’t recall that the mooney needs CG manual fixing. 
Yes I did trim it but I was surprise how much I have to trim it nose up. I am checking some forum specialized on the M20R and it appears that you have to trim it a lot espacially during landing. Will give it a try again later this aftermoon.
Don’t be shy with trim 
When doing patterns I trim for 80-90 with gear down on downwind and flaps in TO position.
As soon as it flies level I keep that setting and refine it a bit for final/base.
The mooney responds well to trim for speed / power for altitude.
WILCO! By the way, do you also use electric trim?
Nice question, I have no idea as I have trim mapped to a rotary on my t16000.
Shouldn’t make any difference I guess.
I do always enable electric trim before flight however, if I remember correctly is the switch close to the fuel pump (I don’t have my pc working now)
Yep that’s the one. Right side of the fuel pump switch. Last switch