I have no reason disputing what you say, especially since i just did a brief test run at sea level and didn't mess with high altitude tests and IAS->TAS conversions.
I think what we all agree on is that the course of fixing things should be playability/performance optimizations followed by getting the FMs as accurate as possible.
It's also good to have some level headed discussion going for a change, without having any thinly veiled "please make my favorite aircraft rock" distractions. If we keep at it we can make it easier for the devs to fix things by compiling a list of in-game tests and official documents to compare them to, resulting in faster fixes.
I guess my point is, good work everybody for focusing on what we can do to pinpoint errors and providing useful feedback instead of just saying "this doesn't work, please fix it"