Yea, agreed... the poor little blue bird gives you a challenge. I like it very much))
I tried the AV-8 and Harriers from Falklands Mod too, but as we can't be sure how accurate modded aircraft are, since "aero coefficients" and flight model modding is mostly done by copying similar stock aircraft... so I'm not convinced how good they are. By the books (published by both sides) the Yak-38 is as good as contemporary early Harriers, and now in game terms it is almost the same. So I hope I made an acceptable result ))
Data tables and such are very complicated, for sure. I did the same with the next craft I am working on currently... You will like it, I'm sure. I need to do two skins and a little avionics, and it's ready.
If you find any problems, inaccuracy, or have new ideas, tell me. So I can release the final ver 1.0 included the extra aircraft, too.