Lavan,
Had similar question regarding Victorinox. However, the answer to the questio might be different.
In my case, it's because my sharpening has evolved to result in thinner angle.
You might have different experience if you just sharpened both at same time.
PS: your sharpening off serration of Bundeswehr OHT was what inspired me to do mine, lin turn led to the above question between older Bundeswehr vs newer OH Sentinel.