I have a 14 year old son (-96) weighing 130 lbs, almost 170 cm tall. He is a very talented racer and need new Lange boots. Last season he was on World Cup Team 110 and after recommendation from Dynastar/Lange we thought that the new RS 110 SC would be ok but after trying them on they are way too soft (softer than last years and almost feels like a kids boot).
Unfortunately they don't get World Cup ZA/ZA to Sweden so the boots we have to choose from (He has a sponsorship with Dynastar/Lange) are:
RS 120 SC
World Cup ZB/ZB
I have tried the new Ross boot in ZA/ZA and i think that would be somewhat the right flex. How does RS 130 compare to ZA/ZA and ZB/ZB in the flex? (I know that they are different boots and with different last 92/97 mm)