No joke: 248mph Hurricane dh5-20, 230mph Spit... what on earth is going on??

[Momod]

Last month I flew the Hurricane DH5-20, This month I`ve been flying the Spit 100 octane but last night I tried the Spit 1 and it seemed very good climbing out and at 15000 plus but on one flight I tangled with a 109 at different altitudes and ended up low where the performance seemed poor compared to the spit 100 octane, This seems to be confirmed by the top speed tests I`ve done at the different altitudes, It almost feels like they have recreated the High fighter/Low fighter configuration of IL2 1946
~S~ 56RAF_Rumba