Concur.
My test scores (post patch) from previous thread:
Spit IIa
FTH = 13500 ft (?!)
at 6.25psi, 2750rpm (rad open) engine fails after about 3 mins
260mph IAS@13500 = 328mph TAS = 528 kmh TAS
Pretty much exactly as yours for 14000 ft. Except your engine seems to stay a bit cooler and my merlin a bit more fragile
