Acdc the 90 twin has a nice vw kombi van broken exhaust header note have you heard one running ?
The comments on running in are good to read.Sometimes wonder if tuning skills are catching up with the fuel tank position in each different aeroplane,you can only compare different saito's by bench running them where the fuel tank is always in the same position.After running in 2 125's i don't like them.The 115 gave full performance within 2 hours,pulled like a train.It seems you have to mother the 125 initially they are so reluctant to perform.My 82's are flown most and after two or three months you don't touch the needles much.With the 182 twin when running it in i'd get huge rpm gains during the second and third tank runs without touching the needles,amazing and good fun to hear.