OK guys I have now flown this plane a couple of times would still give it a mixed rating. I am using a hacker 28s, TP 1320 batt and 10x5e? prop. CG is right at 90 mm from leading edge with batt just in front of wing spar. Had planned on using TP2100 but the spar location blocks moving the battery back any further to get proper CG. No complaints at all regarding flight performance. Definitely improved tracking and an overall lighter feel compared to my previous Efilte MF. Although still working to dial in throws to taste, no serious coupling issues have surfaced so far. I would highly reccomend reading the build thread in posted above due to lack of any sort of detail instructions and hardware. Just wish I had found that thread before my build. The wing spar is weak, one landing error, one broke spar just outside of fuse. Repaired and ready to roll again. No issues with landing gear yet.