Yes, we also reached conclusion that there should be a bit more sideslip during take-off, but not as much as some think or imagine. As our CE2 pilot stated, there really is no sideslip in early phase of takeoff as tail wheel locking mechanism does a great job of keeping the Eagle straight on takeoff. In the later phase however yes, a bit more is needed.
We've already increased it during testing in the last few weeks, but this affected other flight characteristics, messing with tumble and hammerhead. Developing FM is like touching spider web, you touch one string and whole web resonates. And as our CE2 pilot states that other flight characteristics are spot on (named above tumble, snaproll, hammerhead, stall etc.), we will have to make very small adjustments each time, not to break anything else, but carefully observe results.
It's going to take some time guys, but we will get there, especially as we can rely on personal experiences and recorded footage.