Karnak, check at your stats of the last 15 tours and then come here and tell us your large experience flying 190A5/A8 or SpitV, against SpitV/190A.
If you want to check the ONLY two charts we have, 190A8 is outclimbed by far, 190A5 is outclimbed between 7 and 17k (substained climb), and spitV can climb steeper at any alt.
You can come here and tell us, hey these tests surely were wrong, or you can come here and show us you dont know a bit about any of these planes.