Sorry to hear of your issue too 53..
I may have found a glitch in the software.. ??
I have a GTM Fokker DVI 1/4 scale.. if I give it the "finger test" it's about right on. If I use the Xicoy it says add another 1.5 pounds. That's too much..
As best as I know I have all the numbers put in correctly. On other planes I have it seems to be ok.
The Fokker has a VERY short nose moment. I'm wondering if that's not the problem?