The problem is that in most of situations in combat you have from 2 to 6 G+ this
can not be simulated at all because you just can not simulate G for this you should applay changing field of gravitation like electric (if you did first get price of Nobel).
I know phisics very well and I can tell you it will never give you feeling of combat because it can not applay G.
All this is just to make you waste your money - if you want something real just make pilot liceance and learn how to make aerobatics - but be carefull you have no second life

I flew copule of times in plane that makes very simple aerobatics - wing over or hard turn - it is
absolutly different feeling don't let them make a money on you.