it’s all in the mind. there is no difficulty with those specific finger positions, the difficult part is realizing what the next note is… that’s why we should practice and know the scales very well.
i find it easier to go up in maj 2nd interval steps like Bb/C, C/D, D/E but
seems harder to go up chromatically and play each matching 2nd interval.
likewise doing it with maj 3rd intervals. Like you say – just practice. lol
